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rpmdiag
rpmdiag, Tech and Instructor
Category: Nissan
Satisfied Customers: 7623
Experience:  Since 1975
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Engine lost power, can't find any problems, It's consistent,

Customer Question

Engine lost power, can't find any problems
JA: Is the power loss consistent, or does it fluctuate?
Customer: It's consistent, as if the plugs are not firing.
JA: What is the model/year of your Nissan?
Customer: 1988 d21 2.4 liter
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Just getting started.
JA: Anything else you think the mechanic should know?
Customer: It's not smoking or knocking
Submitted: 10 months ago.
Category: Nissan
Expert:  rpmdiag replied 10 months ago.

Hi, I'm Ron and I will be helping you today.
Stand by for a moment while I prepare your answer.

Expert:  rpmdiag replied 10 months ago.

The first thing to check is fuel pressure and volume with a gauge. We need to know that we're getting correct pressure and amount of fuel too. Check the fuel filter for being plugged.

Check the exhaust for having a plugged catalytic converter. These are the things that will cause that.

Thanks Ron

Expert:  rpmdiag replied 10 months ago.

Also, if you can attach a scan tool for more data information, that would also be helpful.

Thanks, Ron

Expert:  rpmdiag replied 10 months ago.

Hi, I'm just following up with you to see if you have any more questions.
Thanks, Ron