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Update...running...backfiring through TB

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Update...running...backfiring through TB Ryan 1-27-08  
Alright bubba...the burb is running nice and smooth now...runs good from cold start to operating temp...you can run it through all the RPMs sitting in park...you can floor it sitting in park...but when you put it in drive and attempt to accelerate from a stop or slow speed it backfires through the throttle body...if you lay into it it does just fine...but normal acceleration yields a backfire in the throttle body...whats the deal...oh yeah...no more Service Engine Soon light!!!! i cleaned the EGR valve...that seems to have helped the most out of everything ive done
Re: update...running...backfiring through TB luke ford 5-19-09  
Check the mass air flow sensor and for cracked vaccuum line if not that try the throttle position sensor.
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