tscompusa2

iTrader: (22)

did you check all physical stuff first? id check all physical stuff then move onto electronic. check the cable, linkage, etc. make sure nothing stupid happened.

unhook the negative terminal from the battery for 10min if the physical stuff checks out ok then try again. this will clear the ecu of any codes or screw ups it has stored in its memory.

lilman8403

iTrader: (8)

Also on my first evo i had idle issues and it was one of the O2 sensors.

lilman8403

iTrader: (8)

But tscompusa is right, don't go spending money without thoroughly checking the basics.

dipsetinallday

iTrader: (7)

Got it to start by stepping on the gas, first time since saturday. And the car barely holds an idle. On sunday it turned on a couple of times and and died, it was also really cold and snowing on sunday. I checked all the physically stuff like fuses and things. Did not see any issues.

tscompusa2

iTrader: (22)

you using e85? my car wont start either unless i give it gas but i use e85. call your tuner up and tell him you want your car to start easier in this cold weather. there are a few maps on the ecu rom u can play with to get it to start easier.

dipsetinallday

iTrader: (7)

Using pump 93 shell gas.

EvoVIII :D

iTrader: (46)

I have that problem with it being really cold out, but i am using the AEM system. Check your cam angle sensor to make sure none of the wires came out or if it is loose, also check to see if the maf is plugged in. If you can get it to start then keep the throttle going manually until it warms up.

If none of that works, check the battery, start pulling out spark plugs and even 02 sensors if all else fails.

dipsetinallday

iTrader: (7)

Just got it start again with the gas pedal right now, I raised the idle a little bit it fluctuates a tiny bit. But is much better than yesterday because the weather is a little warmer and its not snowing. I'm 70 percent sure the problem is th iac and i ordered a new one.

dipsetinallday

iTrader: (7)

my car has not stalled since i raised the idle to 1200 rpms but it sure jumps around when driving around. The throttle response is good. so its not the tps.

jve153

ect- engine coolant temperature sensor
ecm- engine control module, aka ecu- engine control unit or brainbox

tim85851

iTrader: (23)

my friend had this problem before...it was something like water in fuel lines froze up and he needed to add a bottle of heet every fill up...

dipsetinallday

iTrader: (7)

Just installed a brand new iac, and car will not start. It sounds like it's about too when cranking.

EvoVIII :D

iTrader: (46)

If you can still drive it, it sounds like a cam angle sensor problem or the wiring to them, as if a wire popped out of the plug to it. I had a wire come loose and the car drove fine, but would not idle at all unless if i manually kept it going.

dipsetinallday

iTrader: (7)

Know im thinking its the tps. But i'm not sure. How can i test for a bad tps on my evo?

1d10t

iTrader: (19)

Do a boost leak test