ray007

sounds possible, where is the cold start air bypass valve

UPDATE: 07/01/2013 1. Ok first thing the timing was out due to the aftermarket cam pulleys, so reverted that back to original and re-done the timing. Result: car runs better but still cuts out when coming to a stop, revs drop low and cant seem to hold the revs 2. We then adjusted the rev speed to idle a little higher which has reduced the problem but still cuts out occasionally, usually when stopping quickly the revs drop really low and at times cant hold the rev, starts straight back up and drives fine. 3. Coolant sensor - checked resistance today in the morning after not driving for a day on cold engine(on 200k setting as no reading on any other setting) i got approx 65.00??, then checked again after driving and let the engine cool down for about 6hrs its reading 35.00.. doesnt sound right?? same symptons with the sensor connected the car runs contantly near 2k revs and runs really rough - with it off take time to start on cold starts but runs fine 4. also window wipers keep giving me agro, they keep coming on themselves...usually when its not raining..arghhh any advice would be much appreciated

Is this still going on?

I never win any competitions :-(

UPDATE: DIAGNOSTIC RESULTS CODES 1. Code 13 G NE signal circuit 2. Code 14 ignition signal circuit 3. Code 22 Water temp sensor circuit 4. Code 78 fuel pump control circuit - could this be due to the 12v mod? This hasnt really narrowed it down for me :-)

UPDATE: DIAGNOSTIC RESULTS CODES 1. Code 13 G NE signal circuit 2. Code 14 ignition signal circuit 3. Water temp sensor circuit 4. Code 78 fuel pump control circuit - could this be due to the 12v mod? This hasnt really narrowed it down for me :-)

OMG if that was Wanthatone hes owes me £150

Tried doing a diagnostics and found out the instrument cluster for the engine management light etc isnt working its weird the car runs sweet with the sensor OFF Tried a brand new coolant temp ensor which gives problems starting the car

Weird issue.... if I disconnect the coolant temperature sensor the car starts up but struggles with the sensor connected??? Any ideas?

Tried a new coolant temperature sensor still same problem guys

HI all, Would appreciated some help with my troubled project, nearly 2 years and counting The supra is now difficult to start up, when and if it starts the revs behave irratically, go upto 3k revs and hunting idle. the last few days i had to remove the fuel pump plug, then the car would start and play around with the plug (on and off) to get it running and most of the time keep the revs up a bit to keep it running but that dont last long before it cuts off again. The problem started about two weeks back (only been on the road about a moth), 1. initially just used to every other day cut out when slowing down to a stop or stationary but would start straight back up and run fine. 2. eventually started cutting out more often and gradually taking longer and longer to start up and smell rich 3. then occasionally when i stat the car and let it warm up it would itself cut out after about 5 mins but start back up and driver fine 4. then occasionally would have to disconnect the the fuel pump and start the car till the fuel in the system is burned off, the car would automatically rev up high abouk 2.5-3k revs and as its about to die i would plug in the fuel plug and it would run. but behave irratically, revs hunting, smoke from exhaust (smells like fuel), a few back fires/pops etc. 5. now its almost impossible to start and when does just dies after a few minutes, with above symptons. Details about my car. 1. Has had the 12v Fuel pump mod 2. is BPU, walboro fuel pump (quite new but been sitting in car for about a year), FMIC, FCD, Full DECAT. 3. New lamba, new thermostat, had new headgaskets, valve cover gaskets, camshaft seals Valve stem etc etc seals all done since i had the engine out. 4. Started off as a rolling shell, had no fuel lines with it, did install new pipes 5. had all engine vacums replaced 6. cleaned out the IACV a few months back 6.RUNNING PARALLEL TURBO as found a problem with sequential system. 7. i think coil pack are in good condition, had new coil pack clips installed 8. HAS some wiring issues, occasionally wipers come on by themselfs :-) 9. SPEEDO is temperatmental, jumps speed at times, goes from KM's at times back to MPH SPark plugs, are quite new only seen about 250 miles but have had many cold starts in garage, took these out and were carbonated. I know the plugs need changing but need to work out whats causing this. All Vacums seem ok. ANY advice would be much appreciated, if there is anyone local (london area) willing to work on it please pm me. MANY thanks in advance UPDATE: DIAGNOSTIC RESULTS: CODES 1. Code 13 G NE signal circuit 2. Code 14 ignition signal circuit 3. Code 22 Water temp sensor circuit 4. Code 78 fuel pump control circuit - could this be due to the 12v mod? This hasnt really narrowed it down for me :-) UPDATE: 07/01/2013 1. Ok first thing the timing was out due to the aftermarket cam pulleys, so reverted that back to original and re-done the timing. Result: car runs better but still cuts out when coming to a stop, revs drop low and cant seem to hold the revs 2. We then adjusted the rev speed to idle a little higher which has reduced the problem but still cuts out occasionally, usually when stopping quickly the revs drop really low and at times cant hold the rev, starts straight back up and drives fine. 3. 3. Coolant sensor - checked resistance today in the morning after not driving for a day on cold engine(on 200k setting as no reading on any other setting) i got approx 65.00??, then checked again after driving and let the engine cool down for about 6hrs its reading 35.00.. doesnt sound right?? same symptons with the sensor connected the car runs contantly near 2k revs and runs really rough - with it off take time to start on cold starts but runs fine 4. also window wipers keep giving me agro, they keep coming on themselves...usually when its not raining..arghhh any advice would be much appreciated

Add me to the list 4. Ray007 - London (gz aero wide arch manual conversion)

Thanks for the input buddy.. Ad there are a lot more n/a pumps for sale and cheaper

Hi all Some members are giing me the impression that power steering pumps on n/a and TT supra's are interchangeable? Can someone confirm this? From experience of supra's the n/a has the bottle mounted onto the pump rather then being connected by a hose as the tt is?

Man that does sound very similar to my car and same symptoms... Cars jus been sitting there a few weeks now I jus haven't had the time

I hope your wrong but I know you're experienced with supra's... If one turbo is blown will the other not still boost a little?

I did and it seems ok Even tied the TTC mod But still no boost and weird noise

Sounds a little reassuring - as engine and turbos were running fine before taking apart. I strongly believe its human error but it worries me what damage could have been done and where the problem lies

And I the compression is good where do I go from there?

Just had another thought.. The turbo oil return line (I think from 1st turbo) was butchered in the process of removal so was replaced with custom hose Is it possible that this hose is maybe smaller or not flowing good causing excess oil burning in turbo?

Whilst servicing i changed coil pack for lower mileaged good running ones, plus new coil pack clips Can't work it out as when turbos were removed they seemed in good condition and there was hardly any/minimum play. Is it possible a turbo was damaged whilst installation? And there is no oil in the intercooler/boost pipes

Wot I mean is, because the timing marks look ok, is it possible whilst I had the cam pulleys installed they Werner correctly aligned with the cams if you know what I mean? Plus cams have been out maybe not reinstalled correctly?

Thanks guys So I guess my next step to get the timing checked I've got a bad feeling it's out now mentioned as I did have aftermarket cam gears/pulleys installed on the stock cams (jus to look nice) and they might be out of place so I gues cam convers coming off again :-( Any other suggestions would be much appreciate and Thanks for your input guys

Just to mention the turbos seemed in good condition when taken apart. And checked all the hoses/vacuums etc about 10 times yesterday to make sure. Can't find any visual faults or air leaks Also must mention the car was very cold when started and sounded a little lumpy in the video, however usually does sound sweet on idle, can only hear noises when revved really

Hi all Having problems since having the head off and new gaskets fitted all round, including head gasket, inlet and turboanifold gaskets, valve stem seals, crank seals etc etc Now the car starts but there's NO BOOST at all, when revved makes a weird sound and there's some white smoke from the exhaust I tried the TTC mod but that didnt make any difference Video: any advice would be much appreciated