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Old 09-06-2015, 09:55 AM
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Join Date: Feb 2012
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Default PO410, RCM seems Good, Air Pump works when Jumped ????

Had bad fuel pump relay and secondary air pump system cel. Sent RCM to DJ to have Fuel Relay and Secondary Air Pump Relay replaced, He resoldered and did horn mod. Looks great. Air Pump will come on if I close the contact on the relay. This is what it did before DJ replaced it. Had guessed bad relay. Seems not. I have checked all visible wires, battery state of charge, ground. Jumper pump off battery, it works fine. While rare, I hoping it is not the PCM. I have 90 days to get this cel fixed before inspection. Any help would be great. This issue may require an expert with the necessary scan tools. I open for suggestions and a road trip.