Hi, im new to this. im also new to 944's but i've been studying a lot and want to learn more. anyways. im having trouble with my 944s. i had my fuel rail welded because it cracked. about 3 months ago. but now all of a sudden when i try to accelerate, the whole car shakes and dont want to go. so now its just sitting in my garage.i already changed the fuel filter. but that didn't do it. do you think it could be my pump or my regulator? or could it my rail?

 

If the rail was welded three months ago and the car ran fine until now the problem is probably unrelatedto the rail. Do you see or smell fuel in the vicinity of the rail? If so, replace the o-rings on top of the injectors.

The shaking problem couldbe bador broken electrical connectors on the injectors, or even a bad injector.

 

thanks, but i think i found the problem. one of the intake manifold gasket was all messed up. so im waiting fornew onesto come tomorrow.