weetos 0 Posted February 28, 2013 (edited) Hello, Too many threads on this by other users but none I can find exactly match my problem. My g is suffering intermittent missfire and hesitation, the scenario is as follows Starts fine after a few minitues get a slight hesitation then (no particular rev range), if you plant your foot to the floor at this time the missfire is more apparant, then between 2-5 seconds she returns to normal and takes of like a scalded cat. When she's missing I've found if I turn the ignition off then on again the problem again disappears but returns shortly after. What sensors are omitted by the ecu at start up? So far I've changed leads, plugs, dizzy, rotor arm, checked ecu hose (1m long!), fuel pipes checked/ remade off, negative battery wire replaced and digifant control relay. Tomorrow I'm going to swap out the fuel rail, fpr, injectors, wiring harness (off my old/spare engine) and finally the fuel filter. The thing that stumps me though is why is it intermittent? Any suggestions most welcome Edited February 28, 2013 by weetos Quote Share this post Link to post Share on other sites
Supercharged 2 Posted February 28, 2013 I'd look at the blue temp sensor before doing anything else... Quote Share this post Link to post Share on other sites
owen g60 10 Posted February 28, 2013 Seem like either blue temp sender or lambda probe to me Quote Share this post Link to post Share on other sites
weetos 0 Posted February 28, 2013 (edited) Temp sender is on my list for tomorrow but left it out lol. Harness looks brittle so going to replace anyway :) Ta for advice let you know how I get on It's funny how when hunting down faults like this you always seem to find loads of other little jobs that you didn't even know needed doing pmsl Edited February 28, 2013 by weetos Quote Share this post Link to post Share on other sites
