Well ill start here I have a slight miss in a 95 Deville 4.9 engine. the car previously ran hot found I had warped heads so I broke it down and did HG job. Car runs fine outside of a little miss. I replaced all the injectors, plugs and wires. Set the timing to 10 BTDC, car starts and runs one time every time with one hit of the key. But I feel as tho the miss is fuel/air related, I played around with TPS and it smoothed out a lot. But wondering if there's anyway I can go into the OBD1 and diagnose the problem? Thanks For Any and All Help
slight miss 4.9
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I set TPS too about -.2, using the OBD. the spec 0n the TPS is (-.5 to .5 )
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