2000 Volvo S40 ignition coil problem

JCARR43683

MEMBER
2000 VOLVO S40
156,000 MILES

I now have 3 codes that pop up when I scanned for problems. 2 of the codes are about the ignition coil circuit{code 351} and the other is random/multiple misfire{code 300}. What steps can I take to correct these problems? If I repair code 351, will that take care of the second code {300}?

2 Replies

JIS001

MECHANIC
3,408 POSTS

If you fault trace and repair code 351 it will take care of code 300. Check the coil connectors and make sure they are plugged in and secured. Verify that they are plugged in to the correct coil location as well. Measure the circuit for an open from the coil connectors to the ECM and also check for a short circuit. Also check relay #8 in the engine compartment and make sure that is ok.

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Tuesday, January 4th, 2011 AT 4:17 AM

JCARR43683

MEMBER
26 POSTS

Got ignition coil problem fixed. Turned out that the connectors we used were a tiny bit bigger than the coil pins, just squeezed the connectors till the went on snuggly. Still have the 300 code though. Going to do compression test and check the fuel pressure this weekend. Will update you on our progress, oh and would you have an idea where I can find I fuel line clip? Broke the one in the car after removing the fuel injectors to have them cleaned. I've looked around a little and have been told that I need to buy the fuel line to get the clip.

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Wednesday, January 19th, 2011 AT 1:02 AM