Then I checked the alternator by removing the positive terminal while running, worked fine. That night I unhooked the positive terminal to see if there was by chance a short in the system. Yikes, dont do this. These cars have a lot of processors that don't like not having reference voltages. Test a...

That is a lot of miles so plenty of things may be the culprit. From what I gather, the engine has both a problem starting and also struggles to keep the idle for a few seconds For the idling part, I'm thinking, normally these engines keep a higher rpm for about 10 seconds to warm up the catalytic co...

Hmmm...North Country. Profesor Roy in Physics might loan you a VOM if you tell him I (Code name Schultz) sent you. Or he might throw you off the building. If the serp belt is loose, you've found one of your problems. These belts self tension, and if that isnt right, one of the pulleys or tensioner i...

P0089 = ECM-261A Fuel pressure system. Faulty signal Diagnostic trouble code (DTC) information ECM-261A Condition The engine control module (ECM) checks the difference between the requested pressure and the actual pressure in the fuel rail. Diagnostic trouble code (DTC) ECM-261A is stored in the eng...

You need to measure the fuel pressure at the Schrader with a borrowed Autzone gauge to diagnose the fuel system It has To be right on these cars. Good intuition on the local car guys, they don’t know Volvo too well. A Pump electronic Module OR PEM I still removable from underneath without dropping t...

P2s have a lot fewer fuel pump problems than earlier models. I’m a bit concerned you’re problem is upstream in pump control electronics. Did you get a confirmation that’s you have fueldelivery problems?

I agree with fuel pump as the most likely cause. I have had a few of the P2 models in the 04-09 year range that had the intermittent start problem. Some would do it a few times and then go hundreds or thousands of miles and then have a repeat. I put fuel pressure gauge on and the pressure would drop...