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wont rev higher then 4800 when cold


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Hey guys, what's happen'in?

 

Got a prob with me soob. ECU was saying that the Air Control Valve was open or shorted. It was bogging real bad under load when cold. I swap the ACV with the one on my '88 parts car tonight. Bogs' gone, but now it won't rev higher then 4800!!!! Feels like its hiting a rev limiter. Once it starts warming up, it'll get to redline, but takes awhile. Any ideas??? Also, I converted it from 3AT to 5MAN about a mouth ago. Is there any rewiring I need to do(besides 4x4 indicader, reverse lights, and park/neutral swich)?

 

 

Any help will be apreesheated.

 

Thanks

 

Dave

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Sounds like maybe your catalyst is going bad. If you have another exhaust system around bolt it on, if you dont disconnect the exhaust at the flange behind catalyst #1 and see if the bog has gone away. 2nd cat usually goes long before the 1st one...if it ever fails other than rusting.

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