Its 98 buick regal i have changed the plugs added new wires and it fails to start unless i hold down accelerator
SOURCE: Check engine light comes on and goes off
Try putting somw SEAFOAM into your tank. It either your O2-sensor, or EGR-valve. Alot of the time, SEAFOAM will clean these sensor up????
Check and clean Idle air control valve. Make sure its responding to signal as well. Also make sure ther are no vacuum hoses disconnected. This may not be a "cure" but it's a good place to start.
SOURCE: car wont stay running unless foot is on the gas
Withoutknowing if the check engine light is on it could be a variety of things including but not limited to the o2 sensor, throttle positioning sensor, and the MAF and MAP sensors. Best diagnosed by using an OBDII scanner to scan for codes. If no codes are present I would then check for the pressure coming from the fuel pump to make sure it is still functioning.
SOURCE: starts but dies as soon as i let off the gas wont
replace the gas filter just follow the gas line of the carb it should be easy to find
SOURCE: buick regal 92 3.8L Horrible fuel mileage
Sounds like you might have an oxygen sensor problem. Your catalytic converter(s) maybe defective or dirty. That in turn can dirty up the oxygen sensor. A defective oxygen sensor will send faulty info to the computer, interpreting the fumes as cold (even when the engine warms up). That causes the computer to adjust the fuel mixture to very rich, giving you poor gas mileage and the fuel smell. Hope it helps.
223 views
Usually answered in minutes!
×