Car fails to excelerate need help

JOE12345

MEMBER
1989 CHEVROLET CAMARO
67,000 MILES

I have a 1989 chevy camaro RS 305 with the TBi. When excelerating slowly there is no problem; however, when put to full throtle the injectors seem to stop working, the engine studders, chokes out, back fires, the engine light comes on, the car doesnt shut off all together but it will some of the time. I've rebuilt the TBi, replaced the TPS, new fuel pump, fuel filter. If you have any advice I would greatly appreciate it.
Sincerly Joe

4 Replies

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

Have you checked for vacuum leaks?

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Tuesday, November 1st, 2011 AT 3:09 AM

JOE12345

MEMBER
3 POSTS

So ive replaced all the vacuum lines, egr vacuum silinoid, map sensor, and checked all the gapping on the spark plugs. Still have the same problems im stuck. If you could help I would be greatly appreciate it.

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Monday, November 7th, 2011 AT 1:38 AM

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

Wow. You have done a lot already. Have you made sure the catalytic converter isn't plugging or something simple like that? Have you checked the intake itself for a vacuum leak?

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Monday, November 7th, 2011 AT 4:38 AM

JOE12345