milesprwr

Got an '89 240 w/ a red top sr20. Installed a Walbro 255 Fuel Pump recently and everything ran fine for a few days. Until today. Was driving down the highway and all of a sudden I wasn't getting any throttle response (engine was still running though). I pulled over and put it into first and started going again and I got throttle response back until about 2.5K RPMs and then it dies off. Gear selection doesn't matter, I can get to 2.5k and shift to 2nd or any other gear respectively and as long as i'm below 2.5k RPM's I still have throttle response. It's when I go over that point where there's nothing.

This problem is still persisting where the car won't get any throttle response past 2.5K RPMs. It idles ok but it sometimes dips down a little (a problem that began the same time this throttle response began).

It seems obvious it must be a problem with the pump. Would a faulty connection cause the pump to stop sending fuel after a certain point (i.e. 2.5K RPM)? I'm guessing there isn't a solid connection when I tried crimping the wires. I've also read that it could be my MAF.

Any ideas?

sillyvia13

maf all day... I would say.
check the plug on maf itself , could have just loosened up from the POWER put DOWN! lol...
but yea mostly the maf, cause of rpm level...
check codes? in ecu?
gl bud, need more help just pm me...

milesprwr

Thanks! It was the MAF - I was on some bumpy highways so it must've shaken it out. I put it back in and secured it with duct tape so I shouldn't have that problem anymore. I don't know how I missed it when I took a look under the hood last night

Thanks again for the help!

nieko

not the duct tape!!! haha

get one of those little rectangle clips for it so it wont pop off!

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milesprwr

Where can I get one of these clips at??

n240sxfnatic

make one out of a paperclip

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