chrispot

I would say it's a turbo box, looking at the list on wikipedia. link https://en.wikipedia.org/wiki/Toyota_A_transmission#A340E_.2830-40LE.29 Regards Chris.

Anywhere after the throttle butterfly on the plenum should be ok . Regards Chris.

Good shout on the boost leak/ running rich, forgot to add that. Regards Chris.

The supra's don't have a fuel pressure sensor fitted, There must be something wrong your Torque app. I have a vvti supra and the torque app and I do not get fuel pressure because there is no sensor. The base fuel pressure is about 3 bar / 43 psi, base pressure is when the pump is running and there is no vac/pressure hose connected to the regulator. The vac/pressure line is there to keep the fuel pressure constant to the manifold pressure, so if you have 1 bar of boost the fuel pressure will rise to approx 4 bar and the same happens when the manifold is in vacuum ie -1 bar vac the fuel pressure will be 2 bar. So the max pressure that should be seen on a std bpu supra would be about 4.5 bar. As you have the torque app I would use this to check the long term fuel trims (I will not explain about fuel trims there is plenty on info on the net) if the fuel trim is in the negative it means that the ecu is pulling fuel to keep it running at the right AFR, if this is the case it could be the fuel pressure is higher than normal or the O2 sensor is faulty along with other reasons. apparently there is not one long term fuel trim used on a global scale, but several. Not sure how to read them all. Maybe one of the toyota ecu guru's could answer? The fuel pressure regulator in the stock supra can not be adjusted and it is easily replaced ( which I doubt there is anything wrong with it ) and you can check the fuel pressure, one way would be to remove the outlet connection on the fuel filter and place in a Tee fitting for a pressure gauge, and before you ask I don't what size threads etc to use. The O2 sensor keeps the fueling at the correct AFR for normal running but is ignored when running in the higher boost area but is used to set the short term fuel trim which in turn adjusts the long term fuel trim if needed, and as far as I know the long term fuel trim is used when in higher boost area. It would not hurt putting in a new 02 sensor as this may help the fueling at higher boost levels if the sensor is out of spec. In your screenshot of the fuel pressure gauge what are the numbers along the bottom line supposed to mean? ( 1 to 9 ) Also looking at the spark plug is not meaningful as far as I aware, not unless the engine was switched off at the time it was running rich and not allowed to idle etc. If you get this sorted please post up the answer to the problem as it might help others with the same/similar problems. hope this helps. Regards Chris.

No worries, thanks for letting me know. Regards Chris.

Hi karl, I have placed a yellow box around the part I need. I don't need the pipes Just the alloy fitting. Regards Chris. [ATTACH=CONFIG]217869[/ATTACH]

How much for the turbo oil drain fitting, the bit that bolts to the sump. Thanks and regards Chris.

Could be build up of damp/ water? What type of bonnet do you have, is it vented? If so could be short to earth for HT if there is any weakness. Was it running on all cylinders? When rough? Maybe just needs new sparkplugs. Regards Chris

Have you found it? No.1 and No.2 sensors are very close to each other. Regards Chris

Can not see how a timing light would show if the vvti solenoid is stuck shut? Unless you remove filler cap and shine light on cam and then ignition timing marks whilst revving the engine to move the cam and allow for ignition advance? How would this be done using a timing light? Would be easy with a cheap usb dual scope measuring crank and cam sensors. Regards Chris.

is there room to drill the other way? until you hit the stud extractor then it may come out with a suitable punch. then I would drill out bolt completely and put in a nut and bolt? it's been a while i have been under my car so don't know if above is possible to do. regards Chris.

Found the info if anyone interested, it is 60 degrees. Found out the std that they use is MIL-S-8879 (military std) and uses the UNJF which is the same as UNF but with a larger root radius for strength in a nutshell. Regards Chris.

Thanks Jay, have seen this page before, unless I am looking at the wrong page it still don't show thread angle. Thanks for trying Regards Chris.

Hi all, can anyone confirm that a AN fittings use a 60 degree thread angle which i think it is, I have searched the net and can can't find anything to confirm. Being a yank defined thread I assumed a 60 degree, same as there NPT fittings and our BSP is 55. The reason for asking is i am making a AN fitting for a turbo oil pressure gauge. so when i fit my ball bearing turbo i can check pressure into turbo and adjust if necessary via hole size in restrictor then remove my adaptor. I know i can buy one, but why when i can make for nothing that's only going to be used once. Thanks in advance Regards Chris.

Dick licks it? I could not reed or right so I had some daily sex lessons, not quite what I expected but fcuking good fun.