KadinZ

my idle is very high, my engine was ran through water a few weeks ago and it all got fixxered, but theres a couple things i need to replace and idk what they are..

my car starts up at 2500rpm..than goes back down to about 1500, which is still very high, and when i put it in drive it will idle at 900-1100....my car will basically drive itself to about 40. my car only runs good when i have the bottom two 02 sensors unplugged. if they are plugged in, it will run very rich. from what ive noticed, it seems like my car is getting too much oxygen...but idk. help me please.

thank you
Evan

Speed Density

iTrader: (38)

Can you log your car?

KadinZ

if you mean loog like...get into the computer, no..i was thinking about getting a new computer, because mine was wet from the accident. i recently dried it off, but before i took a bunch of pictures to show the insurance, but they wouldnt pay for it.

KadinZ

BUMP, i want to try to figure this out before tomorrow so i can get it done early and quick.

cammedss2000

iTrader: (1)

It seems like it would throw codes. If you cant log it I would say something is wrong. Is the SES light on? It sounds like it could be a pcm problem. Especially if it got wet or do you mean submerged in water? That woudnt be good but if it got rained on I dont think that would be a big deal. There is a way to test to see if your pcm is bad. Turn the car on and let it idle. Gently yet firmly tap the pcm with a screwdriver if the car idle surges it usually means a bad pcm.

KadinZ

ill do that now.
but if not, what do you think is the next thing i should look at? it wasnn't submerged under water, but it did have water in it, and when i turned it upside down and shook it, a bit of water dripped out of it.

Formula350

iTrader: (3)

Checking the TPS voltage would be where I'd start.

KadinZ

i replaced my tps the other day..

cammedss2000

iTrader: (1)

Did you set the voltage on the tps or did you just bolt it on. If you didnt and you need to know how I can look in my manual let me know. TPS would cause it to idle like crap through.

KadinZ

pm sent, im about to go to bed so if you dont get back to me before...thanks for your input, i will look into it.

1996camaross

my car with bad o2's idle'd while driving, at 2200 rpm........ put some new o2's amd it fixed the problem....... i could also idle my car at about 40mph

KadinZ

yeah? think if i disconnect all the 02's it will test that? cuz with all 4 o2's in, the car spits out gas like crazy.

Bad_tx_Z28

iTrader: (3)

dont forget about the IAT as well. Thats what went bad on my car and it had the same symptoms.

KadinZ

where is the IAT located?

cammedss2000

iTrader: (1)

IAT is in your intake lid right before the mass air meter.

KadinZ

intake lid... right before the MAF sensor? i'm not familiar with a mass air meter? could you explain a little further?

Speed Density

iTrader: (38)

It would be after the MAF headed towards the intake, its a small 2 post sensor on the left side of the rubber elbow.

Your problems sound TPS/IAC related.

97Z28LT1

iTrader: (3)

Clean the IAC and see where that gets you.

cammedss2000

iTrader: (1)

Damn im sorry I sounded like an idiotttt that is on my car(ls1) sorry. But if you messed with the tps it very well could be it. Maybe you got a bad tps thats why checking the voltage is a good idea. Checking all of these is a good idea. They all tie into the idle. Here is the big question when did it start? right after you put on the tps or has in been doing this before?

KadinZ

it was doing it before, but before it would search for an idle like go up n down a bit all the time, now it doesnt do that as much, but it idles very high...i doubt i put it on the wrong way...went to the junkyard today, and they close at ******* 4:30...BS but..ill get off early one day and get the 02 sensors.