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Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Car
Satisfied Customers: 1176
Experience:  16 years of experience
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isuzu isuzu trooper: I have 1998 isuzu trooper=obd code p300.

Customer Question

I have 1998 isuzu trooper=obd code p300. problem is under a load(going up hill or acellerating} code 300 comes up(missfiring on multiple cyllinders} . I changed intake gaskets, changed coil packs, new plugs,cleaned out intake sensor, new egr. I give up!!!
Submitted: 3 years ago.
Category: Car
Expert:  K. Wiggins replied 3 years ago.
Hello, have you checked the fuel pressure under these conditions?
Customer: replied 3 years ago.

yes it's fine. injectors are fine,- Ray

Customer: replied 3 years ago.

are we still connected? I am having trouble staying connected

Customer: replied 3 years ago.

what is going on here? I haven,t received any feedback

Expert:  Chris (aka-Moose) replied 3 years ago.

Hello, I'm Chris. Thanks for seeking us for help.


Ray the previous tech opted out?

Was the fuel pressure checked at the time its running rough up hills?

Can a misfire be felt?