Actually the trouble started Sunday. Drive to work fine. Start up car next time after parking for about an hour and get ready to pull out of parking lot when suddenly the engine runs quite gutless. Idles fine but under acceleration just totally bogs down. After playing with the throttle I could get around 35MPH and no more...and that takes about a mile or so. Had a CEL on for several weeks prior to this and thought it was due to the EGR vacuum port being clogged...car had driven fine otherwise and was getting good gas mileage. Drove it around and literally was gutless. Pulled over, stopped, pulled the console up and disconnected the ECU. Let it sit for a few minutes, plugged back in, drives OK now but seeming with less power than before (CEL comes back on almost right away).
It was acting like a bad MAF based on experience so used some credits at the JY and got another one. Cleaned/plugged in the new one, reset the ECU, CEL stays off. Take it for a drive and the CEL comes back on. Go to Autozone and read the code: P1195. Of course the scanner implies its' a fuel metering problem (MAF) so I come back home and research to find it's related to the MAP/boost sensor. I happen to have another MAP sensor assembly from a 98 Protege that I gutted parts from weeks ago so plug in the replacement assembly, connect the vacuum lines, connect the electrical connectors, reset ECU. Start the car and the idle is crazy high. Stop, start again, same thing. Try to drive it and it's gutless again.
Come back home, disconnect the replacement MAP sensor and plug in just the old one. Start it up...back to normal idle. Drive it around, no more CEL.
WTF? The only thing I ended up changing from the original assembly is the part where the vacuum line goes from the EGR test port to the MAP sensor. I'm guessing that was the bad part.
Anyways I hope the issue is solved. I have a replacement manifold waiting just as soon as I'm certain the EGR passage is totally clear..been blowing out the two passages (one on top and one on the bottom just behind where the TB mounts...the passages join up along the back side then curl down to where the EGR actually mounts)...top passage is done and the other part is still clogged (I test it by putting the whole manifold in the bathtub and using some vinyl hose to blow air into the main EGR port...I see bubbles coming clearly out of one passage but not the bottom one...for some reason it seems to clog more thoroughly). I might end up drilling out the plug on the side and cleaning it out that way then plugging the hole with epoxy. Damn I can't believe what a disaster the EGR passage is...no wonder it gets plugged up.
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Kid Zoloft
It was acting like a bad MAF based on experience so used some credits at the JY and got another one. Cleaned/plugged in the new one, reset the ECU, CEL stays off. Take it for a drive and the CEL comes back on. Go to Autozone and read the code: P1195. Of course the scanner implies its' a fuel metering problem (MAF) so I come back home and research to find it's related to the MAP/boost sensor. I happen to have another MAP sensor assembly from a 98 Protege that I gutted parts from weeks ago so plug in the replacement assembly, connect the vacuum lines, connect the electrical connectors, reset ECU. Start the car and the idle is crazy high. Stop, start again, same thing. Try to drive it and it's gutless again.
Come back home, disconnect the replacement MAP sensor and plug in just the old one. Start it up...back to normal idle. Drive it around, no more CEL.
WTF? The only thing I ended up changing from the original assembly is the part where the vacuum line goes from the EGR test port to the MAP sensor. I'm guessing that was the bad part.
Anyways I hope the issue is solved. I have a replacement manifold waiting just as soon as I'm certain the EGR passage is totally clear..been blowing out the two passages (one on top and one on the bottom just behind where the TB mounts...the passages join up along the back side then curl down to where the EGR actually mounts)...top passage is done and the other part is still clogged (I test it by putting the whole manifold in the bathtub and using some vinyl hose to blow air into the main EGR port...I see bubbles coming clearly out of one passage but not the bottom one...for some reason it seems to clog more thoroughly). I might end up drilling out the plug on the side and cleaning it out that way then plugging the hole with epoxy. Damn I can't believe what a disaster the EGR passage is...no wonder it gets plugged up.
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Kid Zoloft
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