Svenska_Monokrom
Professional Lowballer
- Joined
- Aug 15, 2016
- Location
- Oakland, California
So we have another weird curveball of an issue to get some advice on.
So basically we're currently in the process of reffing my 1986 volvo 240 with a 1993 volvo 240 engine that we installed in place of my 1994 volvo 940 turbo engine...
Basically the car keeps failing due to a faulty oxygen sensor and throwing a check engine light 4 or 5 hours after we install a different sensor.
Keeping in mind we started with the 94 940 engine with 940t computers and had o2 sensor issues, then we got the current na engine from our 93 240 with the na 240 computers and have o2 sensor issues with the 93's sensor. But the catch is, that engine, computer, and sensor combo threw no codes in the 93 but throws codes repeatedly in my 86 no matter what known good sensor we put in 4 to 5 hours after putting them in....
We have checked wiring, everything seems perfectly fine.. And we have checked grounds and everything seems fine. Only odd thing is that when we use a multimeter between the ground and the sensor, the multimeter reads .5 volts and stays there as opposed to it bouncing between 0 and whatever.
We have no idea what's wrong and we've checked everything we can and we have a deadline, we're just taking any suggestions we can get at this point.
Typed this on my phone so feel free to ask questions if I left any important details out.
Thanks
So basically we're currently in the process of reffing my 1986 volvo 240 with a 1993 volvo 240 engine that we installed in place of my 1994 volvo 940 turbo engine...
Basically the car keeps failing due to a faulty oxygen sensor and throwing a check engine light 4 or 5 hours after we install a different sensor.
Keeping in mind we started with the 94 940 engine with 940t computers and had o2 sensor issues, then we got the current na engine from our 93 240 with the na 240 computers and have o2 sensor issues with the 93's sensor. But the catch is, that engine, computer, and sensor combo threw no codes in the 93 but throws codes repeatedly in my 86 no matter what known good sensor we put in 4 to 5 hours after putting them in....
We have checked wiring, everything seems perfectly fine.. And we have checked grounds and everything seems fine. Only odd thing is that when we use a multimeter between the ground and the sensor, the multimeter reads .5 volts and stays there as opposed to it bouncing between 0 and whatever.
We have no idea what's wrong and we've checked everything we can and we have a deadline, we're just taking any suggestions we can get at this point.
Typed this on my phone so feel free to ask questions if I left any important details out.
Thanks