Hi all.
New to the forum but I'm desperate for some help. My s40 intermittently comes up with a p1577 code with a Reduced Engine Performance message. I've changed the accelerator pedal and sensor but it hasn't fixed it. I've changed all the glow plugs but although its not as bad its still occurring. The car revs to 1500 rpm and sticks there even with feet off the pedals. G turn the car off and back on and it clears the error. Please help I really am at my wits end...
Thanks,
Barry
Edited to remove "help" per forum rules
p1577 error code s40 1.6 2006
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