What is your question?
·
·
What is your question?
my 1994 mazda mx3 5 speed manual will not accelerate past 23mph on an incline. This began after I gunned it trying to get it to start on a very hot day. It drove fine for about 5 minutes then, would not accelerate past 20 mph, and would not gain any speed at all, it would rock violently when trying to accelerate it. Left it alone for a week, it ran fine around my area where speeds don't exceed 25-30 mph. Then when I took it up hill onto a bridge it would not accelerate over 23mph on the incline, righted itself at the summit. The catalytic converter looks good, the air filter is fine, the plugs and points are fairly new, it is a well maintained auto. What could be causing this problem
1 Reply
Recommend exhaust 'back pressure' test along with engine vacuum testing .. Catalytic converter may look good from the outside but inside is what counts .. These suggested test will help confirm converter is indeed ok... IF cat is restricted, usually can hear a telltale (different) exhaust note from tail pipe as engine is revved... OF course it could also be ignition or fuel related as well. Hands-on testing IS required! https://repairpal.com/repair-shops