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r32gtst idling high? whats the cause

r32rx3

By r32rx3,
in Engines & Forced Induction

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r32rx3 Explorer

r32rx3

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Hi guys,

2 days after purchasing my r32 gtst (auto 89'), the car started idling high. I wasnt sure at first what this was.

One conclusion i came to was the air filter on the car been aluminium mesh type the car does suck in alot of air (hot air, not been blocked off from the heat of the engine bay). I havnt yet changed air filters but want stock airbox. Maybe its a little to much air etc.

The car started then to miss also, so i changed the coil packs and it stopped missing tho i thouight this would fix the high idling also. IT DIDNT.

It idles in park at bout 1500rpm in drive it goes down to about 1150rpm. We retarted the timing on the car while it was running and found that this did decrease the high idling but is retarted all the way and lost wasy to much power etc. I just dont know the cause of this high idling.

I took it to grey imports at annandale and they said that they tried to fix the idling on the computer, but that it wasnt even touching the limiter or something??they didnt know wat was causing this high idling i also changed the cas but this wasn the cause?

Your guys help would be greatly appreciated as I use this car for work driving 1300kms a week i need it to be fuel efficient.

Cheers D

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