1994 Buick Regal Q&A
1994 Buick Regal Question: replacing catalytic converter
You're getting too much fuel. You need to check fuel trim immediately and stop driving the car until you fix it. - Hal...
catalytic damage may have been the result of the problem. I'm trying to resolve the same issue, three things are possible causes, timing (late igniting fuel air mixture shooting flames out on the exhaust stroke), too lean a mixture (to much oxygen verses fuel) or too rich (more fuel than oxygen in the mixture) ... I'm concentrating on the timing, presently I've taken waveforms (cam/crank signal) from a good engine for proper timing at idle and 2000 rpm (it only gets hot at high rpms) to compare to the problem engine. e-mail me at charliesauto@bellsouth .net .... April 25-2011 today and will tell u my results. I did replace the computer since it did not take over the timing advance after start up from the ignition module (it did not keep the 5 volts applied on the by pass switch in the module) .... I'm close ... - 2011charlie
The catalytic converter may become plugged resulting in loss of engine power. General Motors has extended the catalytic convertor warranty on some models to 10 years or 120,000 miles. Please cont...
Vehicle stalls out and is hard to keep cranked. Sometimes I have to keep the accelerator slightly engaged to keep vehicle from stalling. I have replaced the throttle positioning sensor. Also the en...
car idles fine poor acceleation rpms increase speed does not 110000 miles
The serpentine belt tensioner pulley may wear out. Our technicians tell us that in order to get a new pulley from General Motors you must purchase a complete belt tensioner assembly.