Injector Control Circuit problems
07-07-2005, 11:46 PM
#1
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Injector Control Circuit problems I have tried elsewhere but couldn't get any help, so I thought I'd try the wealth of knowledge here.
My 2000 Jeep Grand Cherokee is throwing all the following codes (used to be only half the cyl, now all).
It won't throw them on 91 octane (only needs 87), but idle is still erratic.
I have tried injector cleaner but it doesn't help.
DTC P0201 Injector 1 Control Circuit
DTC P0202 Injector 2 Control Circuit
DTC P0203 Injector 3 Control Circuit
DTC P0204 Injector 4 Control Circuit
DTC P0205 Injector 5 Control Circuit
DTC P0206 Injector 6 Control Circuit
DTC P0207 Injector 7 Control Circuit
DTC P0208 Injector 8 Control Circuit
Any ideas what I can do? Thanks for your help.
My 2000 Jeep Grand Cherokee is throwing all the following codes (used to be only half the cyl, now all).
It won't throw them on 91 octane (only needs 87), but idle is still erratic.
I have tried injector cleaner but it doesn't help.
DTC P0201 Injector 1 Control Circuit
DTC P0202 Injector 2 Control Circuit
DTC P0203 Injector 3 Control Circuit
DTC P0204 Injector 4 Control Circuit
DTC P0205 Injector 5 Control Circuit
DTC P0206 Injector 6 Control Circuit
DTC P0207 Injector 7 Control Circuit
DTC P0208 Injector 8 Control Circuit
Any ideas what I can do? Thanks for your help.
07-08-2005, 01:28 PM
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It could be the PCM itself. I don't know the architecture of the Jeep modules, but usually there is an injector driver section that might be burnt.
The other option is an open in the wires/circuit itself. You would throw a similar code for eg if you unplugged an injector. So check the harness for any damage and if possible check for continuity on the wires themselves. I wouldn't think 8 injectors would go bad in 5 years, but stranger things have happened.
The other option is an open in the wires/circuit itself. You would throw a similar code for eg if you unplugged an injector. So check the harness for any damage and if possible check for continuity on the wires themselves. I wouldn't think 8 injectors would go bad in 5 years, but stranger things have happened.
