Okay it's been what, 2.5 to 3 months since my cars been crappy in the mornings. Time for some answers with use of new tools.

Basic review of problems:

1. turn the car on in the morning and it will idle irratically, swinging from 1500's to 400's

2. driving the car causes it to surge, not only during acceleration but during a constant throttle

3. after about 5 minutes, the idle stops being irratic, the car stops surging, and acts perfectly normal

4. no basic stuff is wrong with it I don't believe, vacuum leaks, loose connections, etc. MAF sensor is brand new, replaced twice, IAC motor replaced new and. Base idle and tps have been set to spec, as well as the timing, done correctly with a timing light. all relays are new too. no codes.

I have a zip file with a series of excel files that moates created

I did these this morning, 2-6-06, and they range from 01 to 07, #'s coming from the last 2 digits of the file name. 01 through 05 is when it is running bad. I don't know what 06 is from but it got zipped by accident, so just ignore 06. 07 is my entire ride home from work, 4 hours after the incident in fairly warmer weather.

01 - I start the car and let it idle, it doesn't look like its going to act up like it usually does so i get pissed and turn logging off and go to take off

02 - just as i go to take off i can feel it hesitate, i brake and put it in neutral and sure enough it starts doing it. So I put logging back on and let it idle for a few

03 - i turned off logging from idle and turned it back on then i take off and go around the block and up the street. it is fumbling bad, and I look like an idiot in the car because it lurches violently back and forth

04 - i get to the end of the street, reset logging again and turn onto another street, same stuff is happening as in 03, and i drive it a few hundred feet to a stop sign

05 - reset logging after the stop sign and at a fairly steady cruise, i drive all the way down a street, and halfway to work which is very close, only a couple miles

06 - disregard, dunno what it is

07 - 4 hours later, at lunch, 12 oclock, i drive her home, runs beautifully, got the entire log there in one file


Sorry about splitting it up so much, but the problem with my ecm and moates is that it tends to lock up over time, and you lose all the information you had.


I would really really really appreciate any help guys, this thing is driving me crazy, its been bad for a good 3 months or so. Someone also told me to get a fuel pressure gauge hooked up and watch it while its doing its thing, which i can acquire fairly easily, but i figured someone should be able to get SOMETHING out of these numbers.

Thanks in advance guys

http://www.infernusgaming.net/data_2.zip

 

here's one entire intact file from this morning

i started the app, then started the car and let it idle until it stopped surging and whatnot, which took about 3-4 minutes i guess i wasn't keeping track exactly

then once it stopped, i drove halfway to school, the entire time after the first few minutes of surging it ran good. if i decided to have started driving while it was surging like in the previous set of data i posted, it would've been horrible

http://www.infernusgaming.net/data_3.zip

 

I had the same thing happen to me and it was the vac line from the MAP to TBI. I sprayed the whole motor down with carb cleaner and checked for leaks but for some reason couldn't find it. Might want to double check! I was pissed when I found out lol.