dies when attaching piping to tb

[ed1380]

I bought the car as a fixer upper. didnt run. changed the CAS sensor and exhaust cam was 180* off. Now it's hard to start but it does
If I attach the piping from the intercooler to the TB it dies. There is plenty of air blowing out. I'm seriously stumped at what it could be

Car in question is a stock 95 GST

Also where can I buy just the injector to intake manifold seals?

Thanks

 

[LiquidX]

OEM Fuel Injector Insulators : JNZ Tuning

Did you replace it with a 95 CAS? Plugs wires in correctly?

Are you starting the car with the MAS unplugged and IC piping diconnected from the TB?

 

[ed1380]

have to crank for about 15 seconds but it starts. Initially revs till 2100. I can lower the RPM by partially plugging the hose to the TB. sensor right after the air filter is hooked up. Once it warms up it idle surges between 1600 and 1900. CAS and CPS are good, no doubts there.

Another problem is lots of smoke once it warms up. My guess is bad seals in the turbo. How likely is that?

Thanks

 

[tode5tool]

well if its white smoke, and the radiator is full of water then yes.. the turbo seals are most likely the culprit. or it could be even worse with a warped head. if it smells kinda like a burnt candel then its burning water, water burns white, coolant burns blueish and oil burns blackish gray.

on the dying issue.. im kinda confused, i think we need more info. i dont understand how your killing the car with the IC pipe hooked up to the tb.

idle surge can come from a lot of things. i had that problem a while back. it ended up being a vacuum line that hooked up to a modulator on the bottom of the intake manifold. but it could also be the idle are controller, faiv, tps, a very dirty tb, dying maf. man,, it could be a lot of things. that's a hard one to fix. start with the vacuum lines, then test the sensors on the tb.

 

[ed1380]

well rebuilt the turbo and it smoked a bit to get all the oil out of the exhaust. actually had oil dripping out the back of the exhaust tips. but that's taken care of.
Now I'm having a little bit of black smoke and it's running rich like hell with the piping disconnected. (i use a multimeter on the o2 sensor) if I put the pipe 50-99% up against the TB it surges 1100-1500 and o2 fluctuates but stays lean (under .5 v). putting the hose up the the elbow 100% not even sliding it on will kill it. This happens only when no throttle is applied. If i give it some gas I can put the hose on all the way and it will rev great, just dont let off the throttle.

The good:
-ISC checked out at 40ohms on each coil
-map sensor also works. 5v normal and goes down as vacuum is applied.
-o2 sensor replaced with a good used one
-no leaks around the injectors, but doesnt matter. pipe not attached to tb anyways

The bad:
-small exhaust leak where the shaft of the wastegate goes through the turbine housing. dont see it now, but it was there when it was smoking
-unplugging isc doesnt change anything, but that's not the problem.
same goes for o2 sensor. the o2 reads fine, but the ecu wont listen to it and adjust fuel. too rich when NA and too lean when turbo'd.
-I have no logging cable
-dad's giving me 2 weeks and he wants it gone

I'm going to clean and test the MAF tomorrow, but I doubt it'll do anything

Thanks

Previous history:
timing belt broke. head rebuilt. mechanic who was putting it back together just walked off on the owner. I bought it. exhaust cam was 180* off, CAS was broken, and misc small stuff

Oh and heres an example of what I mean with the piping
Thats the TB elbow and the hose from the intercooler

 

[Aproductions]

Previous history:
timing belt broke. head rebuilt. mechanic who was putting it back together just walked off on the owner. I bought it. exhaust cam was 180* off and CAS was broken.

are you sure that was all?

 

[ed1380]

well apparently something else is bad, because I'm having this problem also the interior was dirty, no stereo, seat ripped, back shocks on the trunk lid, cracked foglight, should I keep going? and cant forget the leaking turbo. vacuum lines look great thought. not new but pretty dam good

also it'll start easier with the pipe on but dies right away. it has something to do with fueling at idle

I've looked around and keep seeing that an exhaust leak would cause a lean on idle condition, but they all run. Mine dies on idle and the only exhaust leak is the little thing on the wastegate

 

[boostedgsx95]

well if its white smoke, and the radiator is full of water then yes.. the turbo seals are most likely the culprit. or it could be even worse with a warped head. if it smells kinda like a burnt candel then its burning water, water burns white, coolant burns blueish and oil burns blackish gray.

on the dying issue.. im kinda confused, i think we need more info. i dont understand how your killing the car with the IC pipe hooked up to the tb.

idle surge can come from a lot of things. i had that problem a while back. it ended up being a vacuum line that hooked up to a modulator on the bottom of the intake manifold. but it could also be the idle are controller, faiv, tps, a very dirty tb, dying maf. man,, it could be a lot of things. that's a hard one to fix. start with the vacuum lines, then test the sensors on the tb.

Oil does not burn black. Oil burns blue, coolant burns white, FUEL burns black. Havent you seen a diesel like a dodge cummins blowing black smoke? Thats all the unburned fuel. And When your running really rich it blows black? Again unburned FUEL

 

[ed1380]

it was burning white. big white clouds. I dont see how coolant can get into the exhaust. It's a closed loop inside the turbo. no seals or anything, but I did see antifreeze drippings out of the flexpipe. Or it could have been antifreeze dripping on it and soaking in and smoking once it got hot. Guess I rebuilt the turbo for nothing.

Update: cleaned the MAF and unscrewed the BISS about 3 revs and it's a bit better. With the hose clamped on the TB it'll stutter for a few seconds before dieing if I dont give it some gas. spraying starting fluid around the injectors revs it up, so I'm doing that tomorrow. Hope that fixes the lean on idle condition

update2: dumbass used a 1g intake gasket. big vacuum leak.