a longer cam shaft will make a car idle rough
my 1990 300zx is idling rough what could cause this?
timing off
I would suggest a new set of plug wires.
if it's idling rough, I would suggest cleaning the throttle body with carburetor cleaner.
The most common cause of rough idling would be a bad or clogged fuel injector. Also look for the hose on your EGR valve. They tend to come off in hot weather. If the hose comes off the engine will definitely run rough. I had to put a small hose clamp on mine to keep it from comming off. Spiritchsr1
Yes it could and it will cause rough idling and a missing when giving it gas.
I had a similar problem and it was my coil pack
== == You may have a short in the wiring or something is wrong with the computer system in the car.
no
Its idling rough because you probably have a blown head-gasket and lost compression at two cylinders you need to remove all spark plugs and check each cylinders compression.
There are several things that can cause your 1993 Nissan 300 to idle rough. The most common cause is dirty spark plugs. Bad spark plug wires can also cause the problem.
What would make my 1990 camaro run good for 30mins then it doesn't want to start&runs rough& jumpy