Wierd Problem-Maybe
#15
#17
I see one of three things wrong
1: Bad or failing injector
2: Crank Sensor (rare sympt.)
3: Cam Sensor (Rare sympt)
4: Possibly a Bad overflow
Changing levels is only going to change other parameters and make it harder to diagnose. Always start your diagnosis with no programers and chips. While it may start better at first, theres always the possibility that the problem was never related to the programer!
If I can help, I will be in the shop tommorow! I've got to do a set of injectors on a CR truck, So if i dont answer leave a message and I'll call you back!
1: Bad or failing injector
2: Crank Sensor (rare sympt.)
3: Cam Sensor (Rare sympt)
4: Possibly a Bad overflow
Changing levels is only going to change other parameters and make it harder to diagnose. Always start your diagnosis with no programers and chips. While it may start better at first, theres always the possibility that the problem was never related to the programer!
If I can help, I will be in the shop tommorow! I've got to do a set of injectors on a CR truck, So if i dont answer leave a message and I'll call you back!
#20
Intermittent long starts and rough idle is pain to to trouble shoot sometimes. The most common causes are:
Leaking rail pressure relief
Bad injector
FCA malfunction
Gounded harness wire
The CPS and cam sensor could cause the same problem but are monitored pretty tightly by the ECU and should present codes. You usually see other problem with the sensors also.
I see you have an upgraded turbo. The AC compressor wire rubbing on a mount or condensor line will cause these exact symptoms. Its an easy check.
FCA is a bit trickier but unplug it and see if that changes the starting and idle. Clean the plug and dielectric grease it when you put it back on.
The rail relief you can check visually and rule it out.
Injectors are just a pain cuz they won't throw codes and can check perfectly fine yet be the source of the problem.
Good luck finding the issue.
Leaking rail pressure relief
Bad injector
FCA malfunction
Gounded harness wire
The CPS and cam sensor could cause the same problem but are monitored pretty tightly by the ECU and should present codes. You usually see other problem with the sensors also.
I see you have an upgraded turbo. The AC compressor wire rubbing on a mount or condensor line will cause these exact symptoms. Its an easy check.
FCA is a bit trickier but unplug it and see if that changes the starting and idle. Clean the plug and dielectric grease it when you put it back on.
The rail relief you can check visually and rule it out.
Injectors are just a pain cuz they won't throw codes and can check perfectly fine yet be the source of the problem.
Good luck finding the issue.
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