VENOMOUS1 RACING
Has Left the Room - Banned from VTCOA!
I am still fighting my truck running like crap and have yet to have a direction to go in as the only occasional check engine light I get from the right rear O2 and have replaced it already with still an occasional slow response code 159.This shouldn't affect fueling though correct? It acts like a fuel pump problem, or regualtor problem but pressure is dead on 60 even when it acts up? It goes into this seizure type, choking episode and goes very rich although I cannot tell if one side of both but fumes up the truck. Usually about 60MPH during a coast or light decel.I can barely accel a lil bit and she'll pull like a freight train ( usually doesn't)! TPS not the issue!! After datalogging with different scanners I have come to 2 conclusions for now needing verified somehow by anyone with a 10 and a scanner/datalogger.
1. My knock sensors are bouncing between .29 volts and 3.*volts like an )2 sensor? Should they do this?
2. Truck sometimes has an erratic idle I assume is associated? Map sensor? What should it be at idle on a factory truck? Idle smooths right up when in Reverse or Drive and stays same RPMs? Just clears up?
3. I can tell a vacuum difference when this episode occurs as the brakes are VERY easy to apply. Like a new car or how the brakes should be. ( Brake booster leak?)
4. I have seen and not sure how accurate the datalogger was, but saw the right Bank 1 sensor 1 O2 go completely dead to 0.00 volts during this time and come back to life a lil later, I am thinking this is something to do with it all. I believe it also at the same time makes the rear on the same side go to 0.00 volts? I have already changed the O2s and even twice on a couple. Same intermittent thing. Visually cheked the wiring from O2s and rechecked and plugged in PCM and harness pak connectors. Clean as new they were!
Only place I can't see is in the big wire loom that goes behind the head. It is not rubbing or anything though?
5. Crank sensor?? Cam sensor has been replaced to no avail, AI kow it operates in sync with the Crank sensor though? Most claim a NO START CONDTION with a crank sensor though. Mine does act like it becomes out of sync for a few minutes and kicks back in. Like timing is taken away abruptly and comes back on accel?
6. It also seems to affect the truck shifting very early as well. Already replaced the Gov. Pressure solonoid and transducer? Doesn't TPS and MAP control shifting, if not what does?
Pleeeeeeeeeease help me help us figure this out for future reference. Went from 15 MPG to 11 and want this mileage and power back!!
1. My knock sensors are bouncing between .29 volts and 3.*volts like an )2 sensor? Should they do this?
2. Truck sometimes has an erratic idle I assume is associated? Map sensor? What should it be at idle on a factory truck? Idle smooths right up when in Reverse or Drive and stays same RPMs? Just clears up?
3. I can tell a vacuum difference when this episode occurs as the brakes are VERY easy to apply. Like a new car or how the brakes should be. ( Brake booster leak?)
4. I have seen and not sure how accurate the datalogger was, but saw the right Bank 1 sensor 1 O2 go completely dead to 0.00 volts during this time and come back to life a lil later, I am thinking this is something to do with it all. I believe it also at the same time makes the rear on the same side go to 0.00 volts? I have already changed the O2s and even twice on a couple. Same intermittent thing. Visually cheked the wiring from O2s and rechecked and plugged in PCM and harness pak connectors. Clean as new they were!
Only place I can't see is in the big wire loom that goes behind the head. It is not rubbing or anything though?
5. Crank sensor?? Cam sensor has been replaced to no avail, AI kow it operates in sync with the Crank sensor though? Most claim a NO START CONDTION with a crank sensor though. Mine does act like it becomes out of sync for a few minutes and kicks back in. Like timing is taken away abruptly and comes back on accel?
6. It also seems to affect the truck shifting very early as well. Already replaced the Gov. Pressure solonoid and transducer? Doesn't TPS and MAP control shifting, if not what does?
Pleeeeeeeeeease help me help us figure this out for future reference. Went from 15 MPG to 11 and want this mileage and power back!!
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