Houstonderk

iTrader: (3)

I got my metering nozzles out and blocked now but when it cranks it revs up acouple of times and then just dies unless i hold the gas alittle. I have all them blockoff plates installed and the rats nest removed so how would i adjust the idle higher? also my aftermarket gauge shows the vacuum but didn't boost at all during high reving. Whats the deal?

eriksseven

iTrader: (6)

make sure all of your intercooler hoses are clamped down tightly. I've been frusterated by this several times this past week. My car would fire up just fine, rev up to the usual 2k or so, then the RPM's would drop until it sputtered and died (all within about 5-6 seconds). The car would run and drive if I kept the revs above 1500 or so. All of the times it just turned out to be one of the intercooler hoses being not clamped (maybe the 2 smaller vac. lines on the pass. side rear of the TMIC are not hooked up...?

I'd guess it's a vaccum leak of some kind. But to adjust the idle, remove the TMIC. Look at the back of the UIM where the throttle cable connects to the TB (I think). There will be 2 small screw looking things. One has a spring around it (this adjusts where the car revs for the cold start) The other smaller one has a little 8mm head that holds a little screw (small flat-head). Loosen the 8mm nut deal, and then tighten the screw to achieve a higher idle, obviously turn it left to lower the idle.

^ this is a bad description, but oh well. There are only 2 little adjustable screws back there and you should be able to figure out which one I'm talking about. Good luck buddy.

mmjb

make sure you have enough gas in it. I had a problem like this b4. It would start up and then rev for a few seconds then just die on me. I though i had enough gas in it to run it for an hour or so. Then i put some more in and it ran perfect.

xtremeskier97

Maybe it was just bad gas that was in it...and when you put in the new gas it displaced enough of the bad gas so that it ran ok.

Houstonderk

iTrader: (3)

Still nothing. What would a backwards muffler cause? I bought one of those Turbo II mufflers but the welder put the B coming from the motor and the A going out?

xtremeskier97

I didnt know you COULD put a muffler backwards! hahaha...Im not sure WHAT that would do.

Houstonderk

iTrader: (3)

Alright so I flipped the muffler around and it still does the same thing. I checked all vacuum lines and intake hoses but nothing. Put 5 gallons of gas in it. All it does is start up goes to 3k and then dies. If i hold it at like 5 or 6ks it stays running but there is alot of popping and then just dies. ANybody? I am going to make a list of everything that causes this and just take everything off the motor and go one at a time so come on. Ideas?

Houstonderk

iTrader: (3)

ALso some info about the car. Its an 87 Tii with all emissions removed, rats nest removed, interior removed, replaced harness and before it would run but not above 4ks. now it goes above 4ks. Exhaust removed, have only first cat and a cheapo Turbo II muffler from Pep Boys. For some reason I got another UIM and it was missing a nipple on the backside so I connected two of them with a T-fitting and hooked them together. The car goes through plugs like crazy, I mean just about every month the car won't start and i change the plugs and fixed. THis is a project car(not my daily driver) and premixing.

Houstonderk

iTrader: (3)

anybody?

Houstonderk

iTrader: (3)

Oh and one of the little metal peices on the Intake air temp sensor on the intake elbow broke so It is just unplugged. Anyone?

Houstonderk

iTrader: (3)

Now it doesn't even start. Crap! What all does the engine need to run with the stock ECU?

OneEyedJack

iTrader: (5)

With all that starting and shutting down, you might have a little bit of a flood. Go through the standard unflooding procedure to try and start it. The dirty plugs... too... try to find out whats up with that

Have you checked your TPS setting since you removed all of that crap? Messing with all the bypass air stuff like that would whack out your idle, especially the missing BAC.

I suggest setting your TPS to 1k ohms, the procedure is simple and detailed alot in other threads. After that, mess with those idle screws till it sits right.

Try it out, just start using process of elimination on the simple stuff.

rs_1101

when you get it unflooded, expect a vacuum leak. cuz thats what you have. either that or an unplugged afm. one or the other.

change your fuel filter while your fixing vacuum leaks.

edit: revving then dying when you hit the gas? that soo sounds AFM to me. the car will run w/o a TPS, but not air metering. if it was vacuum it would hold a solid rev above 3k, unless its a gigantic leak..

so on second thought,
check fuel filter,
check afm connector,
re-check vacuum routing, you may have missed something..

Houstonderk

iTrader: (3)

I found it out. yes! One of the vacuum lines on the air bypass valve was not clamped down tightly. I also found out that the throttle body was right on top of the fuel line. GOt everything tight and it stayed running. THe only pain is having to take all the top stuff off to adjust it till it is perfect.

rs_1101

no offence.. but i figured itd be something like that.