Troubleshooting

[Chris Aldridge]

I am having trouble with my fuel injection.Some co workers and I are stumped
as to what is wrong.

The Integrator will bounce between 240-255 and 0. At idle it will read in
the upper 200's. It will hit 0 with throttle tip in and go back and forth
between 2xx and 0 during driving. 02 fluctuates and crosscounts. All other
sensors seem to be reading ok. Block learn is 124 to 128, as seen on a Snap
on Scanner.

In my other TGP, the integrator is steady and close to the block learn.

Tried swapping ecms (1227727). This is in a 1990 Turbo Grand Prix.

Any ideas or starting points would be appreciated.

Thanks

Chris

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