Car struggles to make fuel pressure

Mitco39

1. Filter could be clogged, but this would not explain why drop only occurs after repeated pulls.

2. Wiring does make sense, maybe repeated pulls heatsoak the wiring and as such the current and heat spiral out of of control (more heat, causes more current, which in turn causes more heat).

3. Doesn't explain why at the start of the pulls its perfect, 0 issues. Unless it is sensitive to engine bay heat, but I called automotive and they said they chances of it being the regulator are slim to none.

4. Also doesnt explain why its perfect when the pulls are starting. Ill get 2-5 pulls then she will start to really suffer.


My wife was looking through some R35 forums and one guy had a weak battery cause these issues, well mine is still the stock battery, so I think I will change that out as well as put more effort into tracing and diagnosing the wiring. Maybe I should go back to a static pressure in efforts of relieving the stress on the fuel pump wiring.

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