sputtering 7mgte any help?!

cre · 01-02-2010, 09:59 PM

EDIT: n/m, saw your not about no codes

Androidrc · 01-02-2010, 10:00 PM

sorry i typed no codes but it somehow didnt insert it in my post. i had to edit it. ill check one more time cuz i know there can be codes with no light.

cre · 01-02-2010, 10:03 PM

Check for split intake couplers and other leaks, check for oil around plugs, check plugs... that's where I'd start anyway. How's the timing look?

Androidrc · 01-02-2010, 10:14 PM

pardon my previous ignorance i stand corrected. 4 count 'em 4 codes. 21, 23, 31 and 34 sputtering seems to continuously getting worse every time i start her up.
i cant find any explanation for code 23 if it even exists im sure i counted 2 then 3 blinks but its looking like the MAF and O2 sensor signals are screwed up and the turbocharger pressure is reading abnormally. im going to check the intercooler piping and hope its not the ECU.

Androidrc · 01-02-2010, 10:21 PM

o yea and the cam sensor (distributor) is turned fully to the "up" position as far as possible but it's been there since i got the car almost 2 months ago. and there is oil in the plug galley but it's so cold out i might wait til the garage is free to check the plugs.....otherwise i would have long ago.

cre · 01-02-2010, 10:28 PM

Oil in the plug galley WILL cause misfires. Codes 31 and 34 point to a bad AFM; 34 point to AFM or boost leak, but with the 31 a bad AFM is a bit more likely. You should get the mechanical timing issue and spark advance all in order ASAP as well as poor timing will make other misfire issues worse and hard as hell to properly diagnose. The order to approach is: Get the oil out of the galley! Test the AFM, swap in a good one for testing purposes if possible, reset mechanical timing one ALL error codes have been corrected, set ignition advance.

I've never heard of code 23 either.

EDIT: Google turns up reports that according to other TSRM for other vehicles 23 is pretty much the same as 24... IAT sensor problem. So, you may have a wiring issue to the AFM or the AFM was unplugged while the car was running at some time. a bad AFM is still possible, but a LITTLE less likely as the IAT shares very little of the rest of the internal circuit of the AFM.

Androidrc · 01-02-2010, 10:40 PM

u know what i helicoiled and restudded the exhaust manifold the other day and when i was all done i forgot to plug the AFM back in when i first started it up. it was a week ago but it WAS unplugged for a minute or 2. im gunna put my coat on and go outside for a bit. THANKS ALOT for all the help and information ill let u know what i find.

cre · 01-02-2010, 10:59 PM

You really NEED to get the oil out of the galley, especially since you've pulled the plug wires out with the oil in there... it WILL cause misfires.

01-02-2010, 09:59 PM	#1
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	EDIT: n/m, saw your not about no codes __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

01-02-2010, 10:00 PM	#2
Androidrc Stock Join Date: Nov 2009 Location: Altoona, PA Posts: 27	sorry i typed no codes but it somehow didnt insert it in my post. i had to edit it. ill check one more time cuz i know there can be codes with no light. __________________

01-02-2010, 10:03 PM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Check for split intake couplers and other leaks, check for oil around plugs, check plugs... that's where I'd start anyway. How's the timing look? __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

01-02-2010, 10:14 PM	#4
Androidrc Stock Join Date: Nov 2009 Location: Altoona, PA Posts: 27	codes pardon my previous ignorance i stand corrected. 4 count 'em 4 codes. 21, 23, 31 and 34 sputtering seems to continuously getting worse every time i start her up. i cant find any explanation for code 23 if it even exists im sure i counted 2 then 3 blinks but its looking like the MAF and O2 sensor signals are screwed up and the turbocharger pressure is reading abnormally. im going to check the intercooler piping and hope its not the ECU. __________________ Last edited by Androidrc; 01-02-2010 at 10:19 PM.

01-02-2010, 10:21 PM	#5
Androidrc Stock Join Date: Nov 2009 Location: Altoona, PA Posts: 27	more info o yea and the cam sensor (distributor) is turned fully to the "up" position as far as possible but it's been there since i got the car almost 2 months ago. and there is oil in the plug galley but it's so cold out i might wait til the garage is free to check the plugs.....otherwise i would have long ago. __________________

01-02-2010, 10:28 PM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Oil in the plug galley WILL cause misfires. Codes 31 and 34 point to a bad AFM; 34 point to AFM or boost leak, but with the 31 a bad AFM is a bit more likely. You should get the mechanical timing issue and spark advance all in order ASAP as well as poor timing will make other misfire issues worse and hard as hell to properly diagnose. The order to approach is: Get the oil out of the galley! Test the AFM, swap in a good one for testing purposes if possible, reset mechanical timing one ALL error codes have been corrected, set ignition advance. I've never heard of code 23 either. EDIT: Google turns up reports that according to other TSRM for other vehicles 23 is pretty much the same as 24... IAT sensor problem. So, you may have a wiring issue to the AFM or the AFM was unplugged while the car was running at some time. a bad AFM is still possible, but a LITTLE less likely as the IAT shares very little of the rest of the internal circuit of the AFM. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar ---> Last edited by cre; 01-02-2010 at 10:34 PM.

01-02-2010, 10:40 PM	#7
Androidrc Stock Join Date: Nov 2009 Location: Altoona, PA Posts: 27	thanks u know what i helicoiled and restudded the exhaust manifold the other day and when i was all done i forgot to plug the AFM back in when i first started it up. it was a week ago but it WAS unplugged for a minute or 2. im gunna put my coat on and go outside for a bit. THANKS ALOT for all the help and information ill let u know what i find. __________________

01-02-2010, 10:59 PM	#8
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	You really NEED to get the oil out of the galley, especially since you've pulled the plug wires out with the oil in there... it WILL cause misfires. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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