
1988 Mercedes-Benz 420SEL 4.2L Poor Idle Quality
Any thoughts on correct IAC module driver voltage? Have a consistent 1.3v to 2.5v, varying reading at all times. Some manual info states I should see 3-11 v., depending on [...] signal volt inputs to module,i.e., ovp relay, tach sig., temp sensor, etc are ...
FIX posted 4/27/2019
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Message Closed w/FIX
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VIN | WDBCA35D0J |
Engine | 4.2 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | Fuel Injection / cis , k-jet |
Emissions | fed |
Symptoms | Poor Idle Quality |
Occurs | Always, Idle |
Message Closed w/FIX
Vehicle Data
1988 Mercedes-Benz 420SEL
VIN | WDBCA35D0J |
Engine | 4.2 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | Fuel Injection / cis , k-jet |
Emissions | fed |
Symptoms | Poor Idle Quality |
Occurs | Always, Idle |