I have had a problem with my idle which i have nearly fixed. For a while i had to keep my foot on the gas at idle as it was threatening to die on me. I removed the idle air adjusting unit, gave it a we clean inside and cleaned up the connectors. I know have my cold start mechanism and air conditioning compensator back working fine. The problem is my idle wanders every fifteen seconds for five seconds. So, in other words, for fifteen seconds its pretty smooth at 800rpm then it drops for five seconds to between 6-700rpm. I have the TPS set correctly, no faults showing on ECU?

 

Any ideas, what have i over looked?

 

Cheers

 

David

are the throttle bodies clean?

They are on my to do list, maybe even tonight, do you think they would affect it every fifteen seconds?

Temp sender terminals! Have you checked them out? I had similar problems to yours and it turned out to be verdigris on the 2 terminals, I gave them a clean then she was as sweet as a nut.

Temp sender terminals! Have you checked them out? I had similar problems to yours and it turned out to be verdigris on the 2 terminals, I gave them a clean then she was as sweet as a nut.

 

I'll give them a try,

 

thanks

 

david