Hello, I hope you're all doing well. I have a question about the correct fuel pump pressure for an Uplander SUV. Sometimes it accelerates to 120 km/h from a standstill, but then the pressure drops after about two hours. I've checked and verified the pressure, and the crankshaft position sensor has been replaced because the wires were burnt. We also checked the voltage because it was losing power. Now I'm wondering if it could be the fuel pump or the camshaft position sensor, since I haven't been able to find it.
If anyone could share the workshop manual or provide some guidance, I would greatly appreciate it. Thanks and regards.
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Sep 14, 2025