Hello,
I have a Jaguar S-Type 2.5 V6 from 2002. The car symptoms are: rough idle, engine/car shakes during idle or during a stop sign, loss of power, bad combustion and random misfires (P0300 errors). Not a smooth ride!
I redone the entire engine, new engine mounts and transmission mouts, belts, all engine gaskets, new head bolts, head resurfaced and valve hand turned, piston rings, spark plugs, ignition coils, every single sensor, timing chain kit and guides, all crankshaft and piston bearing caps, injectors, starter, reconnected broken connectors with new ones and more and more... But the car still stutters during aceleration, smells like unburned gasoline and shakes at ilde (idles at 750RPM's - Low). What can be? Im desesperate and I dont know what to do anymore. Im getting the following errors: P0300's, U1027, U2523. Can be the ECU-PCM, ground or something like that? All injectors and coils resistance are ok.
Many thanks
David Ribeiro
Well does you cards a communication card so either the wiring is bad are the computer modules are bad or does your short and a sensor somewhere shorting those systems up. Good luck on electronics in an English money pit
Just another question, today I read about MAP sensors. My Jag is showing exactly the same symptoms: smell of unburned gasoline (especially at idle), misfire, rough idle, loss of power etc...
So, I unplugged the MAF/IAT sensors and the engine died (OK normal behavior). Then I unplugged the MAP sensor and the car didn't show any difference (had the exactly stubborn behavior). So can it be faulty?
Obs: Huge money pit indeed, my girlfriend is almost about to leave me because of the car... serioulsy.