Cheorkee misfire

[cyoung0]

I have a 90 cheorkee. I replaced all the injectors and now the engine is missing when at an idle. Also the exhaust smells very rich at an idle. the engine is also very hard to start now. Any ideas on what happened. It idled fine before I changed injectors.

[Mudderoy]

I have a 90 cheorkee. I replaced all the injectors and now the engine is missing when at an idle. Also the exhaust smells very rich at an idle. the engine is also very hard to start now. Any ideas on what happened. It idled fine before I changed injectors.

Could you give us more information on the injectors?

[cyoung0]

I found the problem. The fuel pressure regulator just happen to go bad during the injector project. It was allowing gas to suck through the vacuum line and into the intake manifold. Something else I learned during this project. If your having an idling problem and can not find a vacuum leak, check that your manifold bolts are tight.

[rugidone]

I gotta go all over my motor again, changed the exhaust manifold a week ago. Now Im getting hard starts and misfires all over the place.