Punished
01-28-2014, 10:28 AM
This seems to be an ongoing issue, which I thought I fixed 2 weeks ago. The fix the first time was my TPS showed .59v with key on, I adjusted to .45v and the car drove like normal again without any issues.
Car starts normally, then around 140 degrees - A/F drops to 10.1-10.5 range, idle becomes rough, and its won't rev past 3k rpm. This to my understanding IS limp mode.
Redtop SR20det- z32 maf
With that said-
1) I have replaced my coolant temp sensor (this didn't change anything)
2) I checked my z32 Maf voltage- Brown wire voltage with key on/car off - 0.09 volts, when car was running it barely made it to 0.10 (after I shut the car down I rechecked with key on and it showed 0.19)
White wire voltage with key on/car off - 0.63, when car was running 1.60
picture of my maf plug is at the bottom to show which wire is which
3) I checked my TPS, still showing .45v with key on/car off when checking the middle wire of the TPS.
4) My only 02 sensor is for the AEM eugo and I am on an rs enthalpy tune.
Car drove great after my first limp mode fix of the TPS adjustment, I put it back up on jack stands for a week to weld on a new muffler set up, hook battery back up last night, start the car, turns over a few times before firing up, then hits the 140 degrees temp and goes in to limp again. This limp mode did not stall the car out and make it struggle as bad as the first time. I guess with corrected tps it runs a bit better.
Is this my z32 maf? I will check for wire continuity tonight, that is something I have not done. The car has been driven around for a few years with it as is. Very weird it pops up after the car has been off the battery and sitting for a little bit while I worked on it.
all help is appreciated.
http://i.imgur.com/hUvSaB4l.jpg?2
Car starts normally, then around 140 degrees - A/F drops to 10.1-10.5 range, idle becomes rough, and its won't rev past 3k rpm. This to my understanding IS limp mode.
Redtop SR20det- z32 maf
With that said-
1) I have replaced my coolant temp sensor (this didn't change anything)
2) I checked my z32 Maf voltage- Brown wire voltage with key on/car off - 0.09 volts, when car was running it barely made it to 0.10 (after I shut the car down I rechecked with key on and it showed 0.19)
White wire voltage with key on/car off - 0.63, when car was running 1.60
picture of my maf plug is at the bottom to show which wire is which
3) I checked my TPS, still showing .45v with key on/car off when checking the middle wire of the TPS.
4) My only 02 sensor is for the AEM eugo and I am on an rs enthalpy tune.
Car drove great after my first limp mode fix of the TPS adjustment, I put it back up on jack stands for a week to weld on a new muffler set up, hook battery back up last night, start the car, turns over a few times before firing up, then hits the 140 degrees temp and goes in to limp again. This limp mode did not stall the car out and make it struggle as bad as the first time. I guess with corrected tps it runs a bit better.
Is this my z32 maf? I will check for wire continuity tonight, that is something I have not done. The car has been driven around for a few years with it as is. Very weird it pops up after the car has been off the battery and sitting for a little bit while I worked on it.
all help is appreciated.
http://i.imgur.com/hUvSaB4l.jpg?2