Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

Injector Fault?

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Old Apr 30, 2005 | 12:21 AM
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Kryckter's Avatar
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Joined: Aug 2003
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From: Amarillo, Texas
Injector Fault?

Some quick questions...
I have an OBD1 conversion in my car, using the old OBD1 style knock sensor.
Car drives fine.
When I go WOT, 1st gear is fine, real strong pull, 2nd gear is descent until top end, then it feels slower, shaking, studdering.
I logged it, And when this happens, It shows a DTC 11, and in datamaster, Gives and injector fault.
When I let out of the gas, the Injector duty cycle is 0 on both sides, and O2 readings go to double digits, both sides.
Try and give it gas, and it wont go, misses, studders real bad...
Let it coast for a few seconds and the car goes back to normal, drives perfect again, does this over and over again....Cant figure it out....
Just not too long ago, I fried another PCM's injector drive...
The PCM that is in it now is one I bought....
What is going on......Any ideas on what to check, I dont have the file to uplaod....sorry...
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