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Update on intermittent no-start and cannot read codes from A6:
Car would not start again so we were able to test jumpering the fuel pump relay. Car started right up. Seems like relay is the problem.
His relay is yellow and has 5 pins (87A and extra 87B in the middle). Most replacements and the one on my '97 have 4 pins (we are not in the same place or I would just plug the relay from my car into his to test it).
Have read discussion on 4 vs. 5 pins and yellow/red/green relays: it seems the bottom line is the 4 pin works in all 850s and the middle is a extra, unnecessary ground. Hope so.
I already ordered a 4-pin on ebay yesterday, before we diagnosed. Figured it was good to have. So help is on the way.
Options:
- wait for relay to arrive in mail and hope 4 pin works
- Fix the existing relay: replace capacitors, check solder joints.
- BIG QUESTION: if he drives the car and gets stranded, is it possible/safe to drive with the relay jumpered?
Still cannot read codes from A6. Acts just like a bad wire: flickering sometimes, light on all the time sometimes. Son will drive to auto parts store to use code reader if he is thinks he can get back.
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