91 With one intank fuel pump, Regina . I recently posted an issue with a hard start situation and I have come to the conclusion that it may very well be the inbuilt check valve in the fuel pump that is bad thus allowing for fuel drain back. Priming the fuel pump by switching the ignition switch on and off a few times results in a good start. However I am now experiencing another issue and this time it is engine stuttering upon acceleration while moving off. If I floor the accelerator pedal the engine stutters with an occasional back fire and if I back off the pedal a good bit the engine picks up and begins to run well. And while it is running well say at about 30 mph and I floor the pedal it stutters again until I let off then it runs smooth. Over the summer I installed an IPD VX camshaft with an adjustable camshaft sprocket as well. At that time I installed a new timing belt which I retorqued after driving about 600 miles. The car has been running quite well till this new issue. I have not looked into anything as yet so I am just posting to get an idea where to start. Thanks gents
Paul