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Standard trans models have a switch on the clutch pedal as well as one in the trans. (activates back-up lights as well) when in reverse. Usually the first sign that one is going bad is no reverse lights.
Both need to be working to start. If one fails (i.e. clutch switch) you still have the one in the trans to prevent starting in gear.
May want to check it out before you take it to a shop.
If you bust out the wire diagram you can bypass both switches until you can get a replacement if needed.
had a customer once who had his engine rebuilt in a Mustang, because of lack of power, after that the new engine would run but cut off randomly, still lacking power, the cylinders were getting washed down by flooding because the computer grounding was NO good. Check all of your harness grounds and see if this helps. Just a thought, hope it helps ya
I will still had this issue if I put my stock fuel pressure regulator back on I decided to put a adjustable fuel pressure witch I have set on 18psi if I set it up higher it run pig rich now I think that injectors are firing too much I tried my stock ones still same, also I started another thread getting this code 16 - IDM circuit faulty which it may be my ECM may be fried not sure.
just to make sure I will check those ground connections thanks for you help!.