
1991 Volvo 940 T 2.3L MIL Lamp on
This Volvo keeps setting codes 312 and 131 in the fuel ECU. Code will set after a few key cycles. Mitchell says check voltage at ECU. I have .96 volts at pin 28 on fuel ECU with key on. I have 5.5 volts at pin 1 with engine cranking. According to mitchell this...
Summary posted 3/27/2007
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VIN | YV1JA8748M |
Engine | 2.3 L / 4 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | FI |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
131 | Ignition rpm signal |
312 | KnockFuel enrichment signal missing |
Message Closed w/Summary
Vehicle Data
1991 Volvo 940 T
VIN | YV1JA8748M |
Engine | 2.3 L / 4 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | FI |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
131 | Ignition rpm signal |
312 | KnockFuel enrichment signal missing |