Quote:
Originally Posted by Paul Workman
Some thoughts...
Dropping RPM is not what usually happens with a leak (in closed loop): just the OPPOSITE.
Is typical of an injector failing -the loping idle, drop in RPM; affects specific cylinder(s).
Also typical of ingnition: start with the easy stuff - change the plugs first
Fuel pressure? Leak-down test results?
Just sayin...loping, low idle, affecting specific cylinders...an air leak isn't on the top of my list (nor is casting dispersions)
P.
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Quote:
Originally Posted by sammy
just a thought , what kind of connection do you have on the map sensor ,at the back of the manifold , if it is just a rubber hose that could cause it ,if it is either too long or if the rubber is getting weak .
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So such a symptom CAN be generated electronically?
With the tranny controller module and speedo module giving occasional flashing / trouble LED's, and nasty new static on the radio, I suppose that's suspect as well...
Static FP tests consistently holds 47-48 PSI; leakdown to 45 after :15. Dynamic FP not yet checked yet.