Quote:
Originally Posted by te51levin
First post, huh? Welcome to the board! Now on to business...
Whoa, wait, stop hold up! You're better off testing parts than replacing them.
There is no fuel pump relay, per se. The fuel pump gets its power from the circuit opening relay. This sends power while the starter is engaged and then, if told to, continues to send power to the fuel pump once the engine is running.
Is your airflow meter plugged in? If not, plug it in, because you need it in place. There is a switch inside it that sends power to the circuit opening relay when the engine is inhaling air, which allows the circuit opening relay to send power to the fuel pump. Check your manual (online BGB or a cheap Haynes manual from Half.com ) to see how to test the switch inside the AFM. Basically you're looking for continuity between two particular terminals at the AFM connector when the AFM door has been opened slightly.
If that is not the issue, run a jumper wire from B+ to Fp in the diagnostic connector (located in the engine bay). This bypasses the circuit opening relay and sends power directly from the battery to the fuel pump. Again, even the Haynes manual covers this in greater detail than I can go into here, from memory.
Where in Oregon are you? Anywhere near the Eugene/Springfield area? |
So earlier I took out my AFM and found that the flap was stuck in the closed position, so I got some MAF sensor cleaner and got it loose and working smoothly. I got home late tonight and read your reply...I checked the resistance when the flap is fully closed and fully open, and when it's fully closed I'm reading 400 ohms over the tolerance...so i guess that means i need a new AFM. Do you know anywhere i can get one for cheap? I'm a college student and my only income is the car parts i sell on ebay lol...but i will call LKQ tomorrow to see if they have any mr2's in the yard. Also, I might have a Corrola AFM laying around...I looked up the part numbers and they're just one number off. Do you think it will work if i use a Corrola one? From what i understand it should only change the gas mileage. Correct?
I live in Boring...so not near the Eugene area.
Thanks for all your help btw...