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13/11/2020 9:48 pm
Topic starter
- @Scotty Kilmer what can I do about my 97 pontiac grand prix, when I rev my engine it has good throttle response but once I rev it in park say 2000 RPM it bounces down about 50 RPM and back up repeatedly what's my problem? (3800 ll N/A)
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14/11/2020 2:31 am
Miles? No codes? And how does it run at 5000 rpm under load? I'd clean the injectors and throttle body to start with if no codes and running fine otherwise.
@hillbilly
No codes at all it has about 250k on it I ran dot 3 through the gas to help the injectors it helped a little bit but it still has that bounce and under load it does perfectly
Yea, a proper injector cleaning is what I'd do next...um. And realize, a lot of miles so new injectors may be in order.