Once again get it back togehter and somehting else under the supbercharger goes. This time EGR leak. Car was starrting and hit high reves (2k-3k) Had to shut it down restart to get it down. CEL for lean at idle, Symptoms of bag EGR. Would have been a simple r/r with the supercharger pulled but at least its a 3.0 and only one where the front one of the 5.0 is placed, Move a couple of things and I should have no problem. Was not 100% sure that was the issue until I saw a bit of oil on the underside of the hood directly abouve the valve. I can also hear it now.

That said, the car is getting insanely good gas milage around town. Like 24 avg MPG when it used to get 16-18. LTFT are good as soon as I get on the gas a bit so it;s not running lean. Makes me think it might be worth dealing with the starting issue sinve I do not drive the car much anymore.

Anyone have any thoughts about whether its a good idea or bad idea. Of course it needs to be repalced before emmisions inspection but that's not till may/ Jag indy says its just an emmissions issue

 

All the time when it's running lean will not be good (*) for the engine.

(*) I'm English so that means will be BAD.

I don't know how quickly it might be terminal... See what others say.

 

itsnot “running lean” just idles lean. As soon as I touch the accelerator pedal it goes into the green.

lean under load it an issue. At idle not reall.

 

"running" as in "engine running".

It should not be lean the way described above.