Troubleshooting Request! [SOLVED] Options

[rave2n]

Hello all. On my way home from work this evening, the cellie died.

I was just taking off after a light, and it started to feel like it was stalling in 1st when the gas about half down. It seems to have recovered and was going alright. Drove normal...til the next light. Did it agian, but worse.

After stalling completely while going 35, pulled over. Had trouble starting up, but would start. Idle was crazy, but tapping the gas you could get it up to 4k rpm easy. That didn't last long either. It started to drop asoon as I hit the gas after that. Now it'll have a really rough start up, then run like crap for about 10 seconds, then just dies.

I checked for any obvious leaks or anything of the sort..nothing. My limited knowledge of engines is a hinderence atm. I do know, you need air, fuel, spark. I have air, I have spark. So, my question is...do you guys think my fuel filter, pump, or injector is bad?

The spark plugs are less then a year old, the only recent thing i've done is got a oil change, and put in LED BA-15 bulbs in my rear lights =P

Any assistance would be greatly appreicated, as right now its sitting in a parking lot of a not so wonderful area. Hoping its something I can fix quickly and available at a local shop..

This post has been edited by rave2n: May 19, 2010 - 4:15 PM

[GriffGirl]

Honestly, it sounds like you have a vacuum leak to me. I'd start looking around in that area. I know you said you checked all your vacuum lines and they're correct, but have you checked to make sure none of them are cracked or split, and that they're on securely?

When you did the maintenance work before, did you happen to remove the throttle body and/or intake plenum? I did this a few weeks ago, and had the same problem, it was making me CRAZY. Turned out that when I was reassembling in the dark/cold/rain, I had trouble getting one of the screws in on the plenum, that's on the firewall side, kind of down underneath at an angle, beside the little vacuum canister thingie (I forget what it's called). Next day, I completely FORGOT about this, and couldn't understand WTF was going on.

[rave2n]

Honestly, it sounds like you have a vacuum leak to me. I'd start looking around in that area. I know you said you checked all your vacuum lines and they're correct, but have you checked to make sure none of them are cracked or split, and that they're on securely?

Yea that has crossed my mind many times. I'm going to check one tomorrow with a hand vacumn according to the haynes manual. All the lines I have in general, are soft and most likely need to be replaced. It does make sense though, it doesn't happen until the car is warmed up, so thats when the lines would get tender and loose from the heat. Just so many lines, and it seems difficult to find an actual leak =/ - Might just change'em all out to be honest. Couldn't hurt.

I havent messed with the throttle body, besides putting a SRI on. It might be due to check it =/ - Amazing how one thing goes wrong, you find a million others. Atleast its all getting fixed =P

Here is a video of the tach on how its acting. Just took it when I returned from a drive to the local U-pull to see if they had a Throttle Position sensor I could try out...they didn't...Unless the ones from a corolla 7AFE will work (Found a 4agze there as well, but in horrible condition, and a gutted 97 ST, no engine =( ). Its subtle through most of it, but there is one part where you'll see it drop and hold.

http://s77.photobucket.com/albums/j80/ice_...t=VIDEO_005.flv

This post has been edited by rave2n: Mar 23, 2010 - 4:19 PM