Question about 1999 Volvo S70
I put on a new one and the check engine light still comes on . Is it my wire harness or could my ECM be going bad? because my scanner is showing no signal.
Posted by Anonymous on
You need to check for power to the sensor with a volt meter. If you have power then you need to have a professional check it as you will need a lab scope or graphing multi meter to determine if you are getting a signal to the ECU
Posted on Apr 16, 2015
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Posted on Jan 02, 2017
The best thing is to go to your local Volvo maintenance shop or Volvo experts to find out whats the problem..usually the coomon ones I think is the programs inside its ECU unit..you try this..ask the volvo experts to reset the ECU and lets see..if problem arise then it is no doubt you might need the sensor..hope this help..
Posted on Nov 03, 2008
ok you must see what is missing. an injector requires 12volts to operate. the 12+ should be constant when key on and engine on or off,and the ground pulses. check both ways and see whats not there. if you have no pulse then ecm,cam sensor, or wiring faulty. is power+ is gone, then you have wiring trouble wich is the easier soulution. check and let us know
Posted on Sep 02, 2009
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