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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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1997 940 Idle Control ValveViews : 1631 Replies : 36Users Viewing This Thread : |
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Jun 25th, 2020, 16:41 | #31 | |
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Occasional high idle
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Rob |
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Jun 25th, 2020, 18:22 | #32 | |
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As pointed out further up in one of my posts, it's worth getting the instrument cluster out and cleaning all the connectors, find my post for the exact details as i can't type it all ou again now.
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Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........ |
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Jun 25th, 2020, 21:10 | #33 | |
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Jun 25th, 2020, 23:02 | #34 |
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If the speedo and the fuel ECU aren't getting the same signal the ABS unit is getting then the fault lies in the connectors on the back of the instrument cluster. The fuel ECU gets the speed signal from the back of the speedo.
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Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........ |
Jun 26th, 2020, 13:39 | #35 |
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Near stalling is not asscoiated with missing road speed signals to my knowledge.
Usual cause is dirty throttle body, air leaks etc Worth checking for stored codes in the Fuel, ignition and ABS systems. |
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Jun 26th, 2020, 23:57 | #36 |
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i recently had it smoke tested, no air leaks! i can't remember if or when the throttle body was cleaned. i will look into it....
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Jun 26th, 2020, 23:59 | #37 | |
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Mine never resets itself unless i turn it off and ion again..... |
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