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1994 chevy s 10 2.2 bucks uneven power new map sensor, new throttle sensor. new fuel pump engine rebuilt runs but not well, does not missfire, does not have a mas airflow sensor, looked for intake leak non found starts well, looks to have a new cat, don't know where to look next
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Hi
I had the same problem. I was buying my fuel pumps at Advan**
Auto Parts and Auto Z*** . I always bought the cheapest pump but after dropping the tank 3 times I was frustrated so I bought the best pump they had I think it was made by Bosh. Never had that problem again.
Check the fuel pressure,also change the fuel filter.check the crankshaft sensor,or replace.It sounds more like the tps sensor(throttle position sensor).It is mounted in line with the throttle axle,on the throttle horn.Of course .with out being there and checking I am just guessing.But map sensor or mass air flow sensor could also cause this.Have you checked the air filter?This will cause the problem,if it is stopped up restricting air flow to engine and mass air flow.,map sensor,and vacuums needed to run the car.If I can help,let me know.
dose 2006 3.7 engine have one
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