[Orangecat3800]

More problems! After replacing the fuel pump, plug wires and O2 sensor, the car wouldn't rev over 2500 rpm. Feels like hitting the rpm limiter or something. Checked the wires and plugs, look normal. No CEL.
1990 LN3 3800.

 

[Anonymous]

You mean it won’t go over 2500 while in Park. That’s by design. How about when your driving? Then it should go to 6000. Give a try and report back.

 

[Orangecat3800]

You mean it won’t go over 2500 while in Park. That’s by design. How about when your driving? Then it should go to 6000. Give a try and report back.

The problem is fixed, put the 4th crank sensor in and it's finally working normally.