High Idle - loping tach when driving - HELP!
I have same problem with high idle. We took plenum off and cleaned it. Before doing that, the car would not stay running: too low idle. After cleaning and replacing plenum: 2300 RPM. I have 97 Discovery. Can Indy's do idle adjust? Or only dealer for $100? Hayne's Rover book suggested that there is an adjusting screw beneath tamper proof cap.
Thank you
Thank you
The Haynes manual is wrong on how to adjust your base idle, do a search on here for the RAVE manual, it is THE Rover workshop manual.
No a idie shop cannot adjust the idle as you need to plug into the ECU and only a Rover dealer has the correct machine.
There is a specific way to adjust the idle, do it wrong and you will be in a world of hurt.
The idle screw NEVER needs adjusting. You either have a vacum leak, bad TPS or bad stepper motor.
Mudding
Joined: Mar 2009
Posts: 222
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From: somewhere in Iraq
sounds like bad tps in general. when you pulled the tps there sould be a gasket... most of the time its gone or in pieces... sometimes those pieces get jammed up in the tps and make it do weird things. tps is probably shot though if you can get the specs id do a resistance check with a volt meter someone on here probably knows the spec's it should be in.
i wouldnt try to adjust the idle by physicly moving the tps, unless its just a temp. fix
car quest has the cheapest tps's ive found about 105$ autozone has a duralast tps for about 150$
i wouldnt try to adjust the idle by physicly moving the tps, unless its just a temp. fix
car quest has the cheapest tps's ive found about 105$ autozone has a duralast tps for about 150$
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