Truck running like poop !!!!!!!

[ChrisAU]

Just for ***** and giggles do an ECM/IAC re-learn...
1) remove negative battery cable
2) wait a couple of minutes
3) re-hook battery cable
4) jump a-b terminals with paper clip under dash and leave it in
5) turn key to run (don't crank), leave there for a couple mins
6) ten key off, remove key and wait a minute

Then crank her up, she'll run like **** most likely for a few minutes, do some driving and some ignition cycling (turning off and on).

You should do this every time you touch the IAC, and replace the O2.

 

[ChrisAU]

Edit: forgot to mention to remove the paper clip before cranking fully

 

[chevydude1608]

ive been trying to fix a rough idle condition on my 98 aswell. Have replaced timing chain an gears, crank position sensor, distributor, plugs, put the updated spider injector kit in, and a fuel pump. And all id did was went from random missfire to cylinder 3 missfire so I will be checking for spark tom. I just don't know what it could be though after replacing everything. I didn't do the plug wires because they look and feel good but I'm gonna kick myself if thats what it ends up being after all this. My gf thought i was gonna burn it down in the parking lot earlier until i saw the check engine light was on again.

 

[cdubb]

I have discussed the blowing up of the damn thing too ....... but I keep telling myself its cheaper than a payment. I have been scared my new computer would learn the crap thats going on so I thank you Chris for that info. I cant do any more till friday due to 12 hour shifts and no more play money till pay day. ( Wife gets mad when I get into her budget lol )... but as of right now its worse than when I started. I dont think I got the throttle body put back together right..