Car fails to excelerate need help

1989 CHEVROLET CAMARO
67,000 MILES
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JOE12345
  • MEMBER
  • 3 POSTS
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
Oct 31, 2011 at 7:53 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Have you checked for vacuum leaks?
Oct 31, 2011 at 8:09 PM
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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.
Nov 6, 2011 at 5:38 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 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?
Nov 6, 2011 at 8:38 PM
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JOE12345
  • MEMBER
  • 3 POSTS
Still nothing, went throu all of those. Still not able to kick it down without it spitting and sputering.
Nov 7, 2011 at 1:39 PM
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