Unpluged the MAP sensor...

[caprice]

I tried running the car in differnt limp modes by running it one sensor unplugged at a time. Unplugging the MAP brought the GPH (on scangauge) from .5 to .1-.2, yet It says 14.2 PSI at engine off. weather.com says the barometer presure is 29.92 which is the same as 14.7 PSI. Electrical parts are NOT returnable! So I want to be sure before i sink $65 on a new MAP sensor... that this is the part I need to finnally fix it. I don't want to be throwing parts at it.

[LxMike]

This is on the escort?? did you check to see if any codes are present??

[lovemysan]

I thinks its the daewoo.

[silverinsight]

My Scangage II never reads higher than 14.2

[GasSavers_Red]

Whats it say when the engine is on?

[zpiloto]

Originally Posted by caprice

I tried running the car in differnt limp modes by running it one sensor unplugged at a time. Unplugging the MAP brought the GPH (on scangauge) from .5 to .1-.2, yet It says 14.2 PSI at engine off. weather.com says the barometer presure is 29.92 which is the same as 14.7 PSI. Electrical parts are NOT returnable! So I want to be sure before i sink $65 on a new MAP sensor... that this is the part I need to finnally fix it. I don't want to be throwing parts at it.

Wouldn't there be drivability problems if it's the MAP sensor.

I have a Daewoo Lanos(Maybe it's just the way they design um) and the idle has always been a problem. I can't get it below 900 rpm and the MAP is usually between 14.6-14.8. My idle GPH is .4 GPH in P or D and .3 GPH in N. and it's only a 1.6L. It runs like a sewing machine so i finially gave up.

[caprice]

This is on the daewoo. the ZX2 runs like a champ.
It had a intermitant (egr) 1404 code. So today I took off the EGR valve to inspect it. The plunger doesn't seal. It is slightly smaller that the hole it is in. I put ducktape to sealit up and put it back on. The car ran instantly better! Smooth and perfect. 4 GPH. I bought another used egr. Put it on and it ran like crap like my other one did. 5-6 GPH I think the engine is only sucking the exaust gasses back into just two cyllenders, hence the lop sided idle. Guess I will just have to deal with it. Also it is going to set a code after 30 minunts of driving.

[caprice]

The design of the EGR is looks reversible. So I took it off and reinstalled it 180 degrees to what it was. It idles smooth now. I think the vacuum side was on the exhaust side, and the pressure of the exhaust and the vacuum on the other side push the plunger to open, causing a "leaking" EGR valve! This was a very pesky problem no one had an answer to. Searches for Idle problems and "code 1404 Daewoo" turned up nothing.