Checking fuel pressure,should be 60 +lbs when pump running,should hold 50+lbs for 10min after turning pump off. If low could be pressure regulator or pump . Next check fuel pump ,check at fuel filter outlet 75+lbs pump on,pump off should hold 55lbs for 10 min. Or just put new reg on see what happens. If fuel pressure checks out,then next weak ignition coil burnt ignition rotor or cap. U pulled catalytic converter off,right.
CHECK THE JETS , YOU HAVE GAS PRESSER BUT YOU COULD HAVE MAYBE JET PROBLEMS AND CHECK AIR HOSE'S.
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GAS-------INTO-------JETS---into---------ENGINE-----LOW RPM
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SOURCE: 2000 silverado 4.8 v8 runs bad when it is cold out side.
Try replacing the coolant temperature sensor for the injection system.
SOURCE: 1996 s10 2.2 engine starts but idles rough and will not rev up.
Hi! You must be frustrated by now! your code is marking that the O2 sensor is bad in bank 1. Did you replace the O2 sensor that is located before the catalytic converter? The S10 has an O2 sensor specially made for that cat. its about 30$ That would explain for your blackened spark plugs; your pc on the car is asking for more fuel. GOOD LUCK!!
SOURCE: 1995 CHEVY VAN 20 305 WONT IDLE
Check your fuel pump presure. Pump is in the tank. Also try and loosen the fuel cap, the tank vent may be stopped up.
SOURCE: 1989 Corvette starting and idle problems
i HAVE THE SAME PROBLEM AND TURNED MY IDLE ADJ SCREW DOWN BUT THE IDLE STILL GETS STUCK I ABOUT 900 RPMS AND I HAVE TO TAP THE GAS PEDDLE DOWN TO GET THE IDLE TO DROP TO 600 CAR IN DRIVE AT A STOP I THINK I HAVE TO CLEAN OUT MY IAC BUT I AM NOT SURE THIS THIS HAPPENNED AFTER I CHANGED MY BAD INJECTORS I RESET THE TPI TO 0.54 VOLTS ALSO DO YOU HAVE ANY IDEAS
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