2006 Volvo S60R surging problem
#1
2006 Volvo S60R surging problem
Hello,
I have a 2006 Volvo S60R. It has 136000 miles on it and runs great, with the exception of a recurring very minor surge that occurs when cruising at constant speed. Usually 25 - 35 mph or so. It is barely noticeable. However after doing this twice, it displays a check engine light with the code P0101. I have had it into the Volvo dealer several times for this issue. They did a smoke test for leaks on the turbo piping and replaced a section. Same problem re-occurs. I replaced the EVAP canister and associated hoses twice, initially cleaned the original throttle body, then replaced the throttle body. Replaced the MAF. It has recent new coils and plugs. New stock air filter. All hoses and fittings are tight and in good condition. All parts are factory Volvo parts. No aftermarket. It has been doing this for about 1-1/2 years now. I have just about given up. If anyone has any suggestions I would really appreciate it.
Thanks,
Mike
I have a 2006 Volvo S60R. It has 136000 miles on it and runs great, with the exception of a recurring very minor surge that occurs when cruising at constant speed. Usually 25 - 35 mph or so. It is barely noticeable. However after doing this twice, it displays a check engine light with the code P0101. I have had it into the Volvo dealer several times for this issue. They did a smoke test for leaks on the turbo piping and replaced a section. Same problem re-occurs. I replaced the EVAP canister and associated hoses twice, initially cleaned the original throttle body, then replaced the throttle body. Replaced the MAF. It has recent new coils and plugs. New stock air filter. All hoses and fittings are tight and in good condition. All parts are factory Volvo parts. No aftermarket. It has been doing this for about 1-1/2 years now. I have just about given up. If anyone has any suggestions I would really appreciate it.
Thanks,
Mike
#2
#3
Yes, it is a Volvo MAF as well as throttle body. I have not checked the fuel pressure and am not sure how. It is the original engine coolant temp sensor. I will change that.
#4
in about 2005 volvo went to a variable pressure pump which has a fuel pressure sensor and a pump control module to manage the pump. Not sure about your model but check to see if there's a shrader valve (like a tire...) on the end of the fuel rail under a cap where you can hook up a gauge.
#5
in about 2005 volvo went to a variable pressure pump which has a fuel pressure sensor and a pump control module to manage the pump. Not sure about your model but check to see if there's a shrader valve (like a tire...) on the end of the fuel rail under a cap where you can hook up a gauge.
#7
not sure of the exact spec for idle but here is a good discussion since the pressure will vary
https://www.matthewsvolvosite.com/fo...d%20flush%20it.
https://www.matthewsvolvosite.com/fo...d%20flush%20it.
#8
Thanks. I checked the fuel pressure with a diagnostic tool I borrowed. The fuel pressure is reading right around 58 psi. The tool also recorded a fault in the ECU. The car has the IPD software upgrade so I am not sure if that is what is causing that. Given I have replaced just about everything I just purchased a used ECU to try.
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