Missfire only when accelerating quickly past 7k rpm.

vendredi 5 septembre 2014

Just as the title suggests, when its a gradual acceleration to redline i haven't noticed a problem, however gunning it always gives me a flashing CEL for about 5 seconds then it goes away. This has happened since i bought the car about 8 months ago :banghead:



Things i have already done:

-read the "SUFFERING FROM A MISSFIRE START HERE" post.. several times

-BHR ignition (with wires) with NGK iridium plugs

-cleaned ESS (did not perform the 20 break stomp though)

-cleaned MAF

-replaced small ~6" hose under the trunk of air filter box because of a tear

-cleaned accordion

-cleaned throttle body

-smog was done and passed around february so i do not believe the CAT is bad (no rattles within the housing either)



Things to note:

-04 MT engine has roughly 180k miles on this engine/ about 202k on the car

-only use premium at shell or chevron

-fuel gauge stops working at around half a tank (i hardly ever let it run lower than half anyway, however since the sensor and pump are in the same housing i think it could be a problem)

-seem to be running pretty rich

-have not tried to clean fuel injectors yet



:) Any help is greatly appreciated, comments and questions also welcome. I have been putting off getting the fuel pump checked since most of the stuff I have done already I did/installed myself to save money. If i have left anything out please let me know I will be checking the post regularly. Oh and be gentle.



*thought i should add that since i noticed it misfire in my first attempt to redline months back, i strictly kept the car under 5.5krpm, the only reason it started was because i thought maybe after putting the BHR kit the problem would be fixed. I again am keeping it below 6k rpm to avoid a misfire, and have only attempted it a few times after each thing i have tried fixing.




0 commentaires:

Enregistrer un commentaire

 

Lorem

Ipsum

Dolor