79 244. Need help to get running
#21
I put all the parts back on and it ran pretty similar to before the o2 and fuel filter change( I think it ran poorly because the air meter was stuck, presumably because of a backfire). No noise out of the frequency valve but after some testing I found that the relay is not working properly. I jumped two of the terminals and the engine revs a bit but if I keep them jumped it dies. If I jump them on and off it revs a bit and after doing so the engine reved up with the throttle vs normally it bogs when you open the throttle only to rev a bit once you let off, by the time I had my tools cleaned out of the engine bay to test drive it it was back to its normal no rev with throttle. Cold starts still suck, I don’t thing the cold start injector or idle valve are operating.
#22
Did some more testing today. The relay that powers the frequency valve is not getting enough voltage(1.55v) to switch it on so I jumped it and the frequency valve does work, ran the best it has since we’ve owned it unfortunately the inline pump died shortly after we left the driveway for a test drive. I also tested voltage to the cpr as well as the icv and cold start injector, the cpr is getting just under 5 volts and I’m not getting anything at the icv or cold start injector.
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jsmilde
Volvo 240, 740 & 940
21
06-24-2013 07:17 PM