Well got a FEW questions for you guys who are mechanically inclined.
I have a 1997 Chevy Pickup 5.7 V8. When i bought it there was a rock knocking. I had the motor rebuilt, i removed it and installed. When i got it together, no knocks or ticks but i took it up to get the codes ran (the light wasnt lite up on the dash) It had showed the cam crankshaft alignment, mass airflow sensor's im gonna assume the guy took the dash light out or it is burnt up. It has a slight mis, a pretty bad flutter with a hesitation up until 2,000rpm's and horrible gas mileage like 5mpg.
So I replaced the plug wires, distributor cap, rotor, Mass air flow sensor, and and a sensor under the distributor. Still has the misfire but not as bad. Hesitation is almost gone but the flutter is still there. I just put 20$ in gas in and drove it around about 30 miles didnt go down but a tick mark so i think thats cleared up to. But still has the mis so i took it up to get the codes ran it says mass airflow circuit low input and camshaft position circuit low input. Did some research and it just shows either faulty part or the circuit isn't complete OBD-II Trouble Code: P0340 Camshaft Position Sensor Circuit Malfunction OBD-II Trouble Code: P0102 Mass Air Flow (MAF) Circuit Low Input
They distributor shaft gear was also wore decently bad, i read that if it was bad would give the timing play and would make the computer advance and retard causing a miss etc and flutter so i wouldnt show any codes. Any other opinions?
Also considering the map sensor, it doesn't show any codes but it controls fuel so maybe its making it run rich and causing bad fuel mileage. and dumping to much in causing a flutter when you gun it.
I have a 1997 Chevy Pickup 5.7 V8. When i bought it there was a rock knocking. I had the motor rebuilt, i removed it and installed. When i got it together, no knocks or ticks but i took it up to get the codes ran (the light wasnt lite up on the dash) It had showed the cam crankshaft alignment, mass airflow sensor's im gonna assume the guy took the dash light out or it is burnt up. It has a slight mis, a pretty bad flutter with a hesitation up until 2,000rpm's and horrible gas mileage like 5mpg.
So I replaced the plug wires, distributor cap, rotor, Mass air flow sensor, and and a sensor under the distributor. Still has the misfire but not as bad. Hesitation is almost gone but the flutter is still there. I just put 20$ in gas in and drove it around about 30 miles didnt go down but a tick mark so i think thats cleared up to. But still has the mis so i took it up to get the codes ran it says mass airflow circuit low input and camshaft position circuit low input. Did some research and it just shows either faulty part or the circuit isn't complete OBD-II Trouble Code: P0340 Camshaft Position Sensor Circuit Malfunction OBD-II Trouble Code: P0102 Mass Air Flow (MAF) Circuit Low Input
They distributor shaft gear was also wore decently bad, i read that if it was bad would give the timing play and would make the computer advance and retard causing a miss etc and flutter so i wouldnt show any codes. Any other opinions?
Also considering the map sensor, it doesn't show any codes but it controls fuel so maybe its making it run rich and causing bad fuel mileage. and dumping to much in causing a flutter when you gun it.