[Bradford]

I have a 1989 supra turbo, everything was idleing perfectly until I put an hks ssqv blow off valve kit on. Now it idles rough as hell, and my check engine light is on. Sometimes when i start it up the rpms start drop real low like it wants to die but once i give it gas it levels out. There is a putting noise to. The check engine light will periodically go awat but then returns when i push the car hard. I heard that there is no idle adjuster on the MKIIIs so what should i do? Everything runs smooth its just the crappy idle.


-Bradford

 

[myMUSICveins]

I'd take the HKS BOV kit off and see of the problem goes away.

If it does, maybe the BOV needs to be adjusted more tight. I really haven’t a clue, but you said it started when you installed it, and it's an easy first step towards the process of elimination.

GL

 

[Bradford]

thanks ill try that, anyone else have any ideas?

 

[AGlobalThreat]

Any smoke out the exhaust?

 

[2damaxsupra]

could be vaccum leak, faulty TPS or like 10 other different reasons

 

[twinturbozs]

could be a leak in the bov weld.

 

[Dirgle]

Did you disconect any wires when you put the BOV in. Check to make sure all the connectors are tight. Even if you didn't disconect anything you may have bumped a conector loose. So check everything. Other than that do like myMUSICveins said.

 

[dbsupra]

yep whenever i have a problem i look at where my hands were last. make sure all the clamps are tight first. if that looks good you might want to tighten up the bov. if that doesnt help spay some carb cleaner around the bov weld and see if the idle changes (might want to do this when the car is cooled off to avoid any carb cleaner getting on the hot exh manifold).

good luck

dave