7mgte stumble HELP

ccguy · 12-31-2012, 01:57 PM

yea i hear you correct on the ign/injector timing. was a long night.
i plan on starting to work on it again here in a few weeks. i just needed a little break from pounding my head. thanks for the replys and if anyone has any suggestions they would be appreciated.

cre · 12-31-2012, 11:37 PM

I understand having to take a break. I've got to drop the engine out of my MR-2 to work on some stuff but I dislocated a carpal bone in my wrist this summer and can't afford the surgery so working on my car's rather tough. I'm probably going to be retiring from the site soon.

ccguy · 01-05-2013, 01:48 AM

that is a bummer. bodys are like cars, it really sucks when they dont work right or break.
hope you dont leave too soon....for my sake.

ccguy · 02-02-2013, 11:46 PM

here is a video from this am
http://www.youtube.com/watch?v=lUgZ2nKX5O8
after this video i am replacing the cps with another due to the oe one used in this video had cracked wires.
also i plan on trying a new tps again and see if it helps????
here is a link to some info i found useful.
www.autoshop101.com/forms/h23.pdf

it is almost like the ecu is cutting the spark or injecors (but the fuel consumption is pointing more towards spark). like in this link where it talks about the ecu cutting fuel when the igf signal is not back to the ecu from the ignitor from a serious misfire.
any new ideas from this info???

ccguy · 02-08-2013, 02:04 PM

so i am ordering a wideband. i have seen other threads where this type of symptom is caused by overfueling.
so what would cause over fueling? tps, afm/ boost leak,.....??
any suggestions on this would be nice.

cre · 02-09-2013, 01:42 AM

AFM, boost leak (will only cause real issues at higher loads), excessive fuel pressure, fault in the knock sensor circuit. The TPS is a less likely candidate.

ccguy · 02-09-2013, 02:08 AM

thanks for hanging in there cre. the weather is going to be bad for a little while so going to have to wait for a little bit.

12-31-2012, 01:57 PM	#1
ccguy 3" Exhaust Join Date: Jun 2012 Location: az Posts: 50	yea i hear you correct on the ign/injector timing. was a long night. i plan on starting to work on it again here in a few weeks. i just needed a little break from pounding my head. thanks for the replys and if anyone has any suggestions they would be appreciated. __________________ 1980 toyota 4x4 truck 1987 7mgte motor, 3" exhaust, water to air intercooler. 4.88s locked, dual cases, lift.....

12-31-2012, 11:37 PM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	I understand having to take a break. I've got to drop the engine out of my MR-2 to work on some stuff but I dislocated a carpal bone in my wrist this summer and can't afford the surgery so working on my car's rather tough. I'm probably going to be retiring from the site soon. __________________ 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 --->

01-05-2013, 01:48 AM	#3
ccguy 3" Exhaust Join Date: Jun 2012 Location: az Posts: 50	that is a bummer. bodys are like cars, it really sucks when they dont work right or break. hope you dont leave too soon....for my sake. __________________ 1980 toyota 4x4 truck 1987 7mgte motor, 3" exhaust, water to air intercooler. 4.88s locked, dual cases, lift.....

02-02-2013, 11:46 PM	#4
ccguy 3" Exhaust Join Date: Jun 2012 Location: az Posts: 50	here is a video from this am http://www.youtube.com/watch?v=lUgZ2nKX5O8 after this video i am replacing the cps with another due to the oe one used in this video had cracked wires. also i plan on trying a new tps again and see if it helps???? here is a link to some info i found useful. www.autoshop101.com/forms/h23.pdf it is almost like the ecu is cutting the spark or injecors (but the fuel consumption is pointing more towards spark). like in this link where it talks about the ecu cutting fuel when the igf signal is not back to the ecu from the ignitor from a serious misfire. any new ideas from this info??? __________________ 1980 toyota 4x4 truck 1987 7mgte motor, 3" exhaust, water to air intercooler. 4.88s locked, dual cases, lift.....

02-08-2013, 02:04 PM	#5
ccguy 3" Exhaust Join Date: Jun 2012 Location: az Posts: 50	so i am ordering a wideband. i have seen other threads where this type of symptom is caused by overfueling. so what would cause over fueling? tps, afm/ boost leak,.....?? any suggestions on this would be nice. __________________ 1980 toyota 4x4 truck 1987 7mgte motor, 3" exhaust, water to air intercooler. 4.88s locked, dual cases, lift.....

02-09-2013, 01:42 AM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	AFM, boost leak (will only cause real issues at higher loads), excessive fuel pressure, fault in the knock sensor circuit. The TPS is a less likely candidate. __________________ 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 --->

02-09-2013, 02:08 AM	#7
ccguy 3" Exhaust Join Date: Jun 2012 Location: az Posts: 50	thanks for hanging in there cre. the weather is going to be bad for a little while so going to have to wait for a little bit. __________________ 1980 toyota 4x4 truck 1987 7mgte motor, 3" exhaust, water to air intercooler. 4.88s locked, dual cases, lift.....

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