#1 |
ok, now I've beeen working on my 86 TC for a couple days. The problem with was that it idled up and down a couple hundred RPM and it was missing while cruising, and the turbo to manifold gasket was blown. I pulled it all apart, removed A/C, removed the air/water IC, removed the manifold and turbo, then I replaced the turbo/manifold gasket, and put the turbo/manifold back on. While the turbo was off I rotated the compressor housing to fit my 88 TC IC on. WHile messing with this I found 2 problems, the IAC male connector was broken and the 2 wires actually come out of the connector, also the VAM plastic cover was so loose that I could grab it and pull it off. Also, since the guy before dumped 110 octane in it I went ahead a put on a new O2 sensor and new NGK plugs (Tr5 2238) gapped at .032. There was a BOSCH BPV hooked up with the air/water IC so when I put on the stock IC, I fabricated a way to get it on, I used a couple brass fittings screwed into the IC and ran a hose off of that to the BPV, and from the BPV to a piece of 3" pipe which has a port to hook up the BPV hose and a port to hook up the valve cover breather hose (since this has a T3/T4 hybrid with a 3" inlet, it has no compressor elbow, so it is ran like this....compressor inlet, stock flex hose, 3" metal pipe (with the BPV port and breather port), 3" hose, VAM, cone filter).
So as it sits now, NOTHING has been TOUCHED or CHANGED since when it came into the garage, except this: removed A/C (the connector/switch that screws into the accumulator is just hanging, the connector to the compressor is just hanging), removed the air/water IC setup (the 2 wires for the waterpump are cut and are hanging there), the O2 sensor is replaced, the spark plugs are replaced (.032 gap), the 88 TC IC is on, the BPV is hooked up from the IC to the intake pipe, and the VAM has been swapped for one that doesnt have a cover that can just come off. Also I removed the tape around the IAC connector and the 2 wires came out of the connector completely and I don't know which wire went on which side of the connector, so that may be the biggest problem. ther than that I touched nothing at all. When I go to start it up, its has trouble even getting started at all, I have to give it throttle to keep it running, when I let off throttle, it just wants to die, the car didnt want to stay idling at all while it was cold. It still needed to open up the thermostat so I could fill the radiator up because all of the coolant was draining during the repairs. After it warmed up, it kept itself at idle, going up and down about 200 RPM from 1000 RPM, but when you rev it up it just hesistates and wants to die when the RPM fall back down. The worst thing is when I stand over the engine and rev it up from the TB, as soon as I rev it I hear a knock coming from the engine which really pissed me off....what the hell could cause it to knock....? Another thing I noticed with this was that is I disconnect the hose going from the IC to BPV, I can feel the BPV sucking air in....but I thought the BPV was supposed to stay CLOSED during idle...why was it open? WOuldn't this cause like a HUGE vac leak or something? I mean I simply disconnected the vac line going to the BPV and it closed it off, but it still ran like shit and knocked when you rev it... I checked all the wires and plugs, and seem to be all sparking, would plug gap have anything to do with this? Maybe I gapped one wrong or something....? Anyone have any ideas? The car came into the garage running decent, now it runs shitty. It knocks when you rev, and idles funny almost wanting to die. The wierd thing with the IAC connector is that I swapped the wires around and it doesnt change anything... Also if I hold the car at a certain RPM, it sounds normal, but as soon as you let it idle on its own it acts funny....
Oh yea and another thing, there is a ground wire that goes the stock compressor elbow on a normal TC, with this one the guy had the ground attached to one of the bolts on the back of the compressor housing, if this was grounded bad, would that cause any problems?
[This message has been edited by dm22 (edited 02-17-2003).]
So as it sits now, NOTHING has been TOUCHED or CHANGED since when it came into the garage, except this: removed A/C (the connector/switch that screws into the accumulator is just hanging, the connector to the compressor is just hanging), removed the air/water IC setup (the 2 wires for the waterpump are cut and are hanging there), the O2 sensor is replaced, the spark plugs are replaced (.032 gap), the 88 TC IC is on, the BPV is hooked up from the IC to the intake pipe, and the VAM has been swapped for one that doesnt have a cover that can just come off. Also I removed the tape around the IAC connector and the 2 wires came out of the connector completely and I don't know which wire went on which side of the connector, so that may be the biggest problem. ther than that I touched nothing at all. When I go to start it up, its has trouble even getting started at all, I have to give it throttle to keep it running, when I let off throttle, it just wants to die, the car didnt want to stay idling at all while it was cold. It still needed to open up the thermostat so I could fill the radiator up because all of the coolant was draining during the repairs. After it warmed up, it kept itself at idle, going up and down about 200 RPM from 1000 RPM, but when you rev it up it just hesistates and wants to die when the RPM fall back down. The worst thing is when I stand over the engine and rev it up from the TB, as soon as I rev it I hear a knock coming from the engine which really pissed me off....what the hell could cause it to knock....? Another thing I noticed with this was that is I disconnect the hose going from the IC to BPV, I can feel the BPV sucking air in....but I thought the BPV was supposed to stay CLOSED during idle...why was it open? WOuldn't this cause like a HUGE vac leak or something? I mean I simply disconnected the vac line going to the BPV and it closed it off, but it still ran like shit and knocked when you rev it... I checked all the wires and plugs, and seem to be all sparking, would plug gap have anything to do with this? Maybe I gapped one wrong or something....? Anyone have any ideas? The car came into the garage running decent, now it runs shitty. It knocks when you rev, and idles funny almost wanting to die. The wierd thing with the IAC connector is that I swapped the wires around and it doesnt change anything... Also if I hold the car at a certain RPM, it sounds normal, but as soon as you let it idle on its own it acts funny....
Oh yea and another thing, there is a ground wire that goes the stock compressor elbow on a normal TC, with this one the guy had the ground attached to one of the bolts on the back of the compressor housing, if this was grounded bad, would that cause any problems?
[This message has been edited by dm22 (edited 02-17-2003).]