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rpmdiag, Tech and Instructor
Category: Mitsubishi
Satisfied Customers: 7892
Experience:  Since 1975
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I have a 2.4l 1991 mighty max and can't get it to respond to

Customer Question

I have a 2.4l 1991 mighty max and can't get it to respond to the throttle. It will start and run at idle just fine but when you move the throttle it does nothing. I've checked the TPS and have even tried a brand new one. I've also checked the MAF sensor and the EGR valve. The EGR valve was dirty so I cleaned it up but still no change. I've taken the computer out and did not see any burn marks or signs of bad capacitors. Do you have any suggestions? Thanks in advance.
Submitted: 1 year ago.
Category: Mitsubishi
Customer: replied 1 year ago.
I have also replaced plugs wires cap and rotor
Expert:  rpmdiag replied 1 year ago.

Hi, I’m Ron and I’ll be helping you today.
Before we get started though, Please understand that I don't know
your skill level or tools you have to assist us. Also understand that
I can't see, smell, hear, or touch the vehicle either, so patience is
appreciated. JA is a great Q/A site, but it does NOT replace a
repair shop.
My goal is to make you happy and get a great rating in return for
my time. Sometimes I have to give you bad news that I know you
didn’t want to hear, so please don’t shoot the messenger.

You need to test the fuel pressure with a gauge. It sounds like it has only enough pressure to idle.

Thanks, Ron

Expert:  rpmdiag replied 1 year ago.

Just doing a quick followup on your problem. Do you have any more questions?

thanks, Ron