Mil light and new fuel rail

[big h h]

I have just fitted a exchange fuel rail that has been powdered coated to my speed six, the only differance being the way the fuel supply enters the rail. All went well tll i went for a run, then the mil light came on, and i now find the car hunts ln lower gears, i never had this problem until fitting the new rail. The car runs ok apart from the hunting and the mil light, i presume these are conected. L have replaced all the O rings, and there are no fuel leaks. The only thing i can think of is to put the old rail back on and see if this makes any differance. Any ideas!!

[Quentin1]

Hook it on the laptop and see what the error codes are, injector timing, lamdba, etc...

[VARLEYHYD]

Air box air temp sensor fault ?

Disconnect and try without- fault will exist on dash but should run ok


G

[big h h]

Disconnected the air box sensor, it just ran like a pig, i'am starting to wonder if it's a fuel pressure problem, i noticed the threads on the blanking screw, and the fuel pipe connection had a lot of play in them, until they where done up realy tight, thats on the exchange fuel rail, although i did give them a good smear of red loctite. The exchange rail is off a Tamora,and the fuel connects in a differant place on the rail, but i wouldn't have thought that would make any differance.

Edited by big h h on Thursday 19th April 18:45