Trouble Cranking with P0174 and p0421 - Club4G Forum : Mitsubishi Eclipse 4G Forums - 2006-2012 Eclipse Authority

Mr DSM · August 31st, 2011, 11:26 AM

Title says it all. Was getting on the interstate for a 100 mile drive yesterday and punched it. Threw a SES, assumed it was the same ol bank 2 lean or whatever that occasionally pops up so I ignored it. Half way or so through the trip i threw on the traction lights (also pop up from time to time with this SES).

HOWEVER:

Today I woke up for work and my car was a bit hesitant to crank. Ignored it because it was a bit colder than it has been lately and I just had the oil changed yesterday (was synthetic 5w20 > now running syn 5w30 for the cooler months). Got to work (drove fine), worked 5 hours, and went out to go home. Took a good 30 seconds or so to crank. At this point I'm like ok, not the usual SES bs.

Went to Auto Zone to have the codes scanned and left the car running til I got home and parked it. I did notice a slight miss every few seconds.

Having said all this and looking at the codes I'm assuming a mix of my usual SES (P0174) and a fouled spark plug???

Open to other ideas but this is what I came up with. Haven't had a chance to pull any plugs yet as I just got off work and my parents are coming through for lunch

not to mention I don't have a spark plug socket.

Ideas? Concerns? Suggestions?

(Mods listed in sig. Nothing new has been put on in the last few months)

P0421 Warm Up Catalyst Efficiency Below Threshold (Bank 1)
P0174 System Too Lean (Bank 2)

Ricoswave · August 31st, 2011, 11:53 AM

Mileage? Hmmm. I'm thinking when you hammered it it misfired ( one of the few codes that doesn't have to pend, it puts the light up as soon as you misfire). TCL light going on could be a million things, but most of the time it goes up when multiple SES lights are thrown at once.

Hard starting in my experience has been because of fuel pressure problems (ie bad or failing fuel pump). But without knowing the code its tough to troubleshoot. Assuming that the car has good compression and spark (timing is right, good plugs, good coils), my money is on fuel.

Ricoswave · August 31st, 2011, 12:00 PM

I don't get where the trailing 02 voltage would influence cranking/starting.
Its just the catalytic converter police!

Mr DSM · August 31st, 2011, 12:09 PM

45k miles.

It was running perfect all week until I hammered it yesterday and the SES came on (ran fine then but didn't try cranking it after I got home til this morning).

Ricoswave · August 31st, 2011, 02:17 PM

Could be bad gas. Or maybe you got sloppy at the pump and put 87 in it?

Can't tell you how many times I went to fill mine up and had my hand on the 87 button knowing that my other car runs the cheap shit......

Ricoswave · August 31st, 2011, 02:17 PM

Bad gas or moisture in the fuel would justify the hard start and light misfire.

Mr DSM · August 31st, 2011, 03:23 PM

doubt its gas. Been on the same tank all week. Gas light came on last night when I got home. (I've been lower on gas than this before so its not a lack of gas creating crappy starts, plus i put about a quarter tank in just to be sure and it's starting the same way).

I noticed that when I first try to crank it it sounds like a dead battery until it turns a bit, then it peps up and cranks. I'll make a video of it in a bit for audio etc..

JoeyC · August 31st, 2011, 03:31 PM

just a battery!

JoeyC · August 31st, 2011, 03:31 PM

lol jk

JoeyC · August 31st, 2011, 03:33 PM

maybe its your battery connection make sure there clean or it wont start right !!!

Mr DSM · September 1st, 2011, 11:27 AM

got some pics and a video. uploading them now. my battery tie down is corroded which is strange. but the battery connections look pretty clean. starting to think it's electrical because when i tried to roll up my windows with the car off they were a bit slower than normal.

pics and video to come.

Mr DSM · September 1st, 2011, 12:03 PM

http://s301.photobucket.com/albums/n...-06-35_842.mp4
http://s301.photobucket.com/albums/n...-07-15_549.mp4

Mr DSM · September 1st, 2011, 12:07 PM

cant get the videos to embed so the links are posted to them ^^

Ricoswave · September 1st, 2011, 02:08 PM

Haggard ass battery?

snakeeyes · September 1st, 2011, 03:51 PM

maybe a bad battery,the corrosion is coming from the caps where you add water maybe cause the acid is trying to boil.i recently changed out the shitty oem battery and went with a sealed battery.

Mr DSM · September 1st, 2011, 09:25 PM

I think I'm going to try to swap batteries tomorrow with a buddy and see how it cranks. If it solves the problem then I guess a new battery is in my future. Anybody know if warranty will cover it? Its an 08 with time to spare on my bumper to bumper.

snakeeyes · September 2nd, 2011, 09:48 AM

i wouldnt get another oem battery.550 cranking amps seems weak to me.i have the gs and i upgraded to 800 ca at zero degrees and 940 cca at 32 degrees.if you dont want anymore corrosion,go sealed,maintenance free.

Mr DSM · September 3rd, 2011, 07:49 PM

Update:

Haven't had a chance to try out a different battery due to weather and work. My SES light has turned itself off though.

Mr DSM · September 6th, 2011, 10:33 AM

Put jumpers to it yesterday to see what would happen and it cranked like a champ. Definitely a battery. Getting the dealer to check the charging system when I take it in to get my door stop fixed that broke.

Mr DSM · September 7th, 2011, 05:40 PM

Cranks like a champ now. Just a dying battery.

snakeeyes · September 8th, 2011, 09:39 AM

Nice !

August 31st, 2011, 11:26 AM	#1 (permalink)
Mr DSM Senior Member Name: Cody Join Date: Mar 2008 Location: Hickory/Greensboro, NC Vehicle: 2008 Eclipse GT Posts: 2,636 Rep Power: 65	Trouble Cranking with P0174 and p0421 Title says it all. Was getting on the interstate for a 100 mile drive yesterday and punched it. Threw a SES, assumed it was the same ol bank 2 lean or whatever that occasionally pops up so I ignored it. Half way or so through the trip i threw on the traction lights (also pop up from time to time with this SES). HOWEVER: Today I woke up for work and my car was a bit hesitant to crank. Ignored it because it was a bit colder than it has been lately and I just had the oil changed yesterday (was synthetic 5w20 > now running syn 5w30 for the cooler months). Got to work (drove fine), worked 5 hours, and went out to go home. Took a good 30 seconds or so to crank. At this point I'm like ok, not the usual SES bs. Went to Auto Zone to have the codes scanned and left the car running til I got home and parked it. I did notice a slight miss every few seconds. Having said all this and looking at the codes I'm assuming a mix of my usual SES (P0174) and a fouled spark plug??? Open to other ideas but this is what I came up with. Haven't had a chance to pull any plugs yet as I just got off work and my parents are coming through for lunch not to mention I don't have a spark plug socket. Ideas? Concerns? Suggestions? (Mods listed in sig. Nothing new has been put on in the last few months) P0421 Warm Up Catalyst Efficiency Below Threshold (Bank 1) P0174 System Too Lean (Bank 2) __________________ <FOR SALE!!! Fujita CAI \| 3" Aeon Exhaust to HKS Axle Back \| 6K Hi/Low and Fog HIDs \| 35% Tint \| Vision Eye Lids \| Progress Rear Sway Bar \| Tanabe Strut Bar \| TB Bypass\| Nexen N3000 Tires \| Optima Red Top Last edited by Mr DSM; August 31st, 2011 at 12:14 PM.

August 31st, 2011, 11:53 AM	#2 (permalink)
Ricoswave Lathe Master Join Date: Nov 2007 Vehicle: 05 Lancer Evolution Posts: 3,839 Rep Power: 11	Mileage? Hmmm. I'm thinking when you hammered it it misfired ( one of the few codes that doesn't have to pend, it puts the light up as soon as you misfire). TCL light going on could be a million things, but most of the time it goes up when multiple SES lights are thrown at once. Hard starting in my experience has been because of fuel pressure problems (ie bad or failing fuel pump). But without knowing the code its tough to troubleshoot. Assuming that the car has good compression and spark (timing is right, good plugs, good coils), my money is on fuel. __________________ Mods: Progress Lowering Springs, Fujita CAI, Full 2.5" Stainless Exhaust, Aero Turbine 2540I Muffler, Ripp Long Tube Headers (SES Free), Dynomax High Flow Cat, Thrush Stainless Resonator, Ripp Poly Motor Mounts, Glowshift Gauge Pod and Gauges, GTech SS, Custom Glass Radiator Hose, TWM GS Short Shifter w/ custom reverse lockout, TB Bypass, Red Neon Decklid

August 31st, 2011, 12:00 PM	#3 (permalink)
Ricoswave Lathe Master Join Date: Nov 2007 Vehicle: 05 Lancer Evolution Posts: 3,839 Rep Power: 11	I don't get where the trailing 02 voltage would influence cranking/starting. Its just the catalytic converter police! __________________ Mods: Progress Lowering Springs, Fujita CAI, Full 2.5" Stainless Exhaust, Aero Turbine 2540I Muffler, Ripp Long Tube Headers (SES Free), Dynomax High Flow Cat, Thrush Stainless Resonator, Ripp Poly Motor Mounts, Glowshift Gauge Pod and Gauges, GTech SS, Custom Glass Radiator Hose, TWM GS Short Shifter w/ custom reverse lockout, TB Bypass, Red Neon Decklid

August 31st, 2011, 12:09 PM	#4 (permalink)
Mr DSM Senior Member Name: Cody Join Date: Mar 2008 Location: Hickory/Greensboro, NC Vehicle: 2008 Eclipse GT Posts: 2,636 Rep Power: 65	45k miles. It was running perfect all week until I hammered it yesterday and the SES came on (ran fine then but didn't try cranking it after I got home til this morning). __________________ <FOR SALE!!! Fujita CAI \| 3" Aeon Exhaust to HKS Axle Back \| 6K Hi/Low and Fog HIDs \| 35% Tint \| Vision Eye Lids \| Progress Rear Sway Bar \| Tanabe Strut Bar \| TB Bypass\| Nexen N3000 Tires \| Optima Red Top

August 31st, 2011, 02:17 PM	#5 (permalink)
Ricoswave Lathe Master Join Date: Nov 2007 Vehicle: 05 Lancer Evolution Posts: 3,839 Rep Power: 11	Could be bad gas. Or maybe you got sloppy at the pump and put 87 in it? Can't tell you how many times I went to fill mine up and had my hand on the 87 button knowing that my other car runs the cheap shit...... __________________ Mods: Progress Lowering Springs, Fujita CAI, Full 2.5" Stainless Exhaust, Aero Turbine 2540I Muffler, Ripp Long Tube Headers (SES Free), Dynomax High Flow Cat, Thrush Stainless Resonator, Ripp Poly Motor Mounts, Glowshift Gauge Pod and Gauges, GTech SS, Custom Glass Radiator Hose, TWM GS Short Shifter w/ custom reverse lockout, TB Bypass, Red Neon Decklid

		Club4G Forum : Mitsubishi Eclipse 4G Forums - 2006-2012 Eclipse Authority > General > Problem Reports
Trouble Cranking with P0174 and p0421

August 31st, 2011, 02:17 PM	#6 (permalink)
Ricoswave Lathe Master Join Date: Nov 2007 Vehicle: 05 Lancer Evolution Posts: 3,839 Rep Power: 11	Bad gas or moisture in the fuel would justify the hard start and light misfire. __________________ Mods: Progress Lowering Springs, Fujita CAI, Full 2.5" Stainless Exhaust, Aero Turbine 2540I Muffler, Ripp Long Tube Headers (SES Free), Dynomax High Flow Cat, Thrush Stainless Resonator, Ripp Poly Motor Mounts, Glowshift Gauge Pod and Gauges, GTech SS, Custom Glass Radiator Hose, TWM GS Short Shifter w/ custom reverse lockout, TB Bypass, Red Neon Decklid

August 31st, 2011, 03:23 PM	#7 (permalink)
Mr DSM Senior Member Name: Cody Join Date: Mar 2008 Location: Hickory/Greensboro, NC Vehicle: 2008 Eclipse GT Posts: 2,636 Rep Power: 65	doubt its gas. Been on the same tank all week. Gas light came on last night when I got home. (I've been lower on gas than this before so its not a lack of gas creating crappy starts, plus i put about a quarter tank in just to be sure and it's starting the same way). I noticed that when I first try to crank it it sounds like a dead battery until it turns a bit, then it peps up and cranks. I'll make a video of it in a bit for audio etc.. __________________ <FOR SALE!!! Fujita CAI \| 3" Aeon Exhaust to HKS Axle Back \| 6K Hi/Low and Fog HIDs \| 35% Tint \| Vision Eye Lids \| Progress Rear Sway Bar \| Tanabe Strut Bar \| TB Bypass\| Nexen N3000 Tires \| Optima Red Top

August 31st, 2011, 03:31 PM	#8 (permalink)
JoeyC -cruzer- Name: joeyc Join Date: Nov 2010 Location: AZ Vehicle: 2006 ECLIPSE GT Posts: 1,944 Rep Power: 4	just a battery! __________________

August 31st, 2011, 03:31 PM	#9 (permalink)
JoeyC -cruzer- Name: joeyc Join Date: Nov 2010 Location: AZ Vehicle: 2006 ECLIPSE GT Posts: 1,944 Rep Power: 4	lol jk __________________

August 31st, 2011, 03:33 PM	#10 (permalink)
JoeyC -cruzer- Name: joeyc Join Date: Nov 2010 Location: AZ Vehicle: 2006 ECLIPSE GT Posts: 1,944 Rep Power: 4	maybe its your battery connection make sure there clean or it wont start right !!! __________________

September 1st, 2011, 11:27 AM	#11 (permalink)
Mr DSM Senior Member Name: Cody Join Date: Mar 2008 Location: Hickory/Greensboro, NC Vehicle: 2008 Eclipse GT Posts: 2,636 Rep Power: 65	got some pics and a video. uploading them now. my battery tie down is corroded which is strange. but the battery connections look pretty clean. starting to think it's electrical because when i tried to roll up my windows with the car off they were a bit slower than normal. pics and video to come. __________________ <FOR SALE!!! Fujita CAI \| 3" Aeon Exhaust to HKS Axle Back \| 6K Hi/Low and Fog HIDs \| 35% Tint \| Vision Eye Lids \| Progress Rear Sway Bar \| Tanabe Strut Bar \| TB Bypass\| Nexen N3000 Tires \| Optima Red Top

September 1st, 2011, 12:03 PM	#12 (permalink)
Mr DSM Senior Member Name: Cody Join Date: Mar 2008 Location: Hickory/Greensboro, NC Vehicle: 2008 Eclipse GT Posts: 2,636 Rep Power: 65	http://s301.photobucket.com/albums/n...-06-35_842.mp4 http://s301.photobucket.com/albums/n...-07-15_549.mp4 __________________ <FOR SALE!!! Fujita CAI \| 3" Aeon Exhaust to HKS Axle Back \| 6K Hi/Low and Fog HIDs \| 35% Tint \| Vision Eye Lids \| Progress Rear Sway Bar \| Tanabe Strut Bar \| TB Bypass\| Nexen N3000 Tires \| Optima Red Top Last edited by Mr DSM; September 1st, 2011 at 12:07 PM.

September 1st, 2011, 12:07 PM	#13 (permalink)
Mr DSM Senior Member Name: Cody Join Date: Mar 2008 Location: Hickory/Greensboro, NC Vehicle: 2008 Eclipse GT Posts: 2,636 Rep Power: 65	cant get the videos to embed so the links are posted to them ^^ __________________ <FOR SALE!!! Fujita CAI \| 3" Aeon Exhaust to HKS Axle Back \| 6K Hi/Low and Fog HIDs \| 35% Tint \| Vision Eye Lids \| Progress Rear Sway Bar \| Tanabe Strut Bar \| TB Bypass\| Nexen N3000 Tires \| Optima Red Top

September 1st, 2011, 02:08 PM	#14 (permalink)
Ricoswave Lathe Master Join Date: Nov 2007 Vehicle: 05 Lancer Evolution Posts: 3,839 Rep Power: 11	Haggard ass battery? __________________ Mods: Progress Lowering Springs, Fujita CAI, Full 2.5" Stainless Exhaust, Aero Turbine 2540I Muffler, Ripp Long Tube Headers (SES Free), Dynomax High Flow Cat, Thrush Stainless Resonator, Ripp Poly Motor Mounts, Glowshift Gauge Pod and Gauges, GTech SS, Custom Glass Radiator Hose, TWM GS Short Shifter w/ custom reverse lockout, TB Bypass, Red Neon Decklid

September 8th, 2011, 09:39 AM	#21 (permalink)
snakeeyes Drives fast Name: Good will always triumph over evil.you can believe that ! Join Date: Feb 2011 Location: TN hills Vehicle: 09 370z intimidator Posts: 3,739 Rep Power: 6	Nice ! __________________ Makes engines run efficient !

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

September 1st, 2011, 03:51 PM	#15 (permalink)
snakeeyes Drives fast Name: Good will always triumph over evil.you can believe that ! Join Date: Feb 2011 Location: TN hills Vehicle: 09 370z intimidator Posts: 3,739 Rep Power: 6	maybe a bad battery,the corrosion is coming from the caps where you add water maybe cause the acid is trying to boil.i recently changed out the shitty oem battery and went with a sealed battery. __________________ Makes engines run efficient !

September 1st, 2011, 09:25 PM	#16 (permalink)
Mr DSM Senior Member Name: Cody Join Date: Mar 2008 Location: Hickory/Greensboro, NC Vehicle: 2008 Eclipse GT Posts: 2,636 Rep Power: 65	I think I'm going to try to swap batteries tomorrow with a buddy and see how it cranks. If it solves the problem then I guess a new battery is in my future. Anybody know if warranty will cover it? Its an 08 with time to spare on my bumper to bumper. __________________ <FOR SALE!!! Fujita CAI \| 3" Aeon Exhaust to HKS Axle Back \| 6K Hi/Low and Fog HIDs \| 35% Tint \| Vision Eye Lids \| Progress Rear Sway Bar \| Tanabe Strut Bar \| TB Bypass\| Nexen N3000 Tires \| Optima Red Top

September 2nd, 2011, 09:48 AM	#17 (permalink)
snakeeyes Drives fast Name: Good will always triumph over evil.you can believe that ! Join Date: Feb 2011 Location: TN hills Vehicle: 09 370z intimidator Posts: 3,739 Rep Power: 6	i wouldnt get another oem battery.550 cranking amps seems weak to me.i have the gs and i upgraded to 800 ca at zero degrees and 940 cca at 32 degrees.if you dont want anymore corrosion,go sealed,maintenance free. __________________ Makes engines run efficient !

September 3rd, 2011, 07:49 PM	#18 (permalink)
Mr DSM Senior Member Name: Cody Join Date: Mar 2008 Location: Hickory/Greensboro, NC Vehicle: 2008 Eclipse GT Posts: 2,636 Rep Power: 65	Update: Haven't had a chance to try out a different battery due to weather and work. My SES light has turned itself off though. __________________ <FOR SALE!!! Fujita CAI \| 3" Aeon Exhaust to HKS Axle Back \| 6K Hi/Low and Fog HIDs \| 35% Tint \| Vision Eye Lids \| Progress Rear Sway Bar \| Tanabe Strut Bar \| TB Bypass\| Nexen N3000 Tires \| Optima Red Top

September 6th, 2011, 10:33 AM	#19 (permalink)
Mr DSM Senior Member Name: Cody Join Date: Mar 2008 Location: Hickory/Greensboro, NC Vehicle: 2008 Eclipse GT Posts: 2,636 Rep Power: 65	Put jumpers to it yesterday to see what would happen and it cranked like a champ. Definitely a battery. Getting the dealer to check the charging system when I take it in to get my door stop fixed that broke. __________________ <FOR SALE!!! Fujita CAI \| 3" Aeon Exhaust to HKS Axle Back \| 6K Hi/Low and Fog HIDs \| 35% Tint \| Vision Eye Lids \| Progress Rear Sway Bar \| Tanabe Strut Bar \| TB Bypass\| Nexen N3000 Tires \| Optima Red Top

September 7th, 2011, 05:40 PM	#20 (permalink)
Mr DSM Senior Member Name: Cody Join Date: Mar 2008 Location: Hickory/Greensboro, NC Vehicle: 2008 Eclipse GT Posts: 2,636 Rep Power: 65	Cranks like a champ now. Just a dying battery. __________________ <FOR SALE!!! Fujita CAI \| 3" Aeon Exhaust to HKS Axle Back \| 6K Hi/Low and Fog HIDs \| 35% Tint \| Vision Eye Lids \| Progress Rear Sway Bar \| Tanabe Strut Bar \| TB Bypass\| Nexen N3000 Tires \| Optima Red Top Last edited by Mr DSM; September 7th, 2011 at 05:45 PM.

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