Search results

The TPS is different for pre 89 and post 89 Supras since the throttle bodies are slightly different. The pre 89 ones have a blue tag and the post 89s have a red tag. Since this is a post 89 car you need the red tag. Check out the color of the TPS tag because the previous owner(s) may have...

Well you can 1- purchase a brand new EGR valve 2- purchase a working used one 3- take off and pitch the current EGR valve, close it all off Do a search to see what others have done. I have mine on because of strict emissions in PA (as you). If I were you I would do #2.

See if the charcoal canister removal was done correctly. I know two Supra owners that have no air filter on the end of the AFM because of space issues. They just have the honeycomb screen at the end and the metal screen cover. Their cars run fine as far as I know. Check the CPS, timing and...

Any codes like 51? I would check out the Idle Speed Control valve and TPS for the high idle. Are all your intercooler pipes connected properly? Check that accordian hose too.

I have an EGR on my car and boost up to 15 PSI just fine. My EGR is new though. It helps to keep the engine cool, thereby reducing the Nitrous Oxide emissions.

The biggest thing to worry about with the MK3 is the blown head gasket issue. Ask the owner if the engine has a metal head gasket. Ask what the bolts were torqued to. I would open the hatch and uncover the trunk area -- expose the tire well back there. Is there moisture or water? Is it...

Check for black, blue or white smoke out of the exhaust. Do you smell coolant? Check those hoses - there are so many. Does it start up right away? Does it stall? Does it stall after high RPMs or when you stop at a red light or stop sign? If the car is parked, check that space when the car...

No problem. I appreciate it. It whined like crazy today. I never heard this before. Maybe a bearing in the Walbro motor is bad. Well regardless I won't start the car anymore and I have a new Walbro and fuel pressure regulator coming. In addition the clutch and flywheel need replaced along...

I hate to give just a generic answer but I believe that problem can be attributed to the wrong air/fuel mixture, timing, spark plugs or plug wires. This kind of thing is tough to figure out but what is needed is a TSRM and a multimeter. Go around and check each system (air, fuel, electrical)...

OK checked out a couple things. The CSI time switch needed replaced (did so with a good one), and one of the VSVs (did so again with a good one). The same symptoms occur. I hear a loud whining in the engine bay when the car sputters and the fuel pressure fluctuates so I figure it's the fuel...

Thanks JJ. I appreciate it.

"will some one please tell me what the dashpot is and what its function is or even a picture of it. in the contunual idle problem it keeps showing up in my searches and need to verify its working properly" Check it out: http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=EC&P=8...

Thanks JJ... No the fuel pressure does not fluctuate with the vacuum line off. It stays constant at 40 PSI. I am assuming that is a good thing. With the vacuum line on it is at 30 PSI and then starts to fluctuate. What would you suggest I try next?

I am posting my progress on this problem and am now checking the fuel system. I may have a problem with the pump relay, resistor, AFPR and/or fuel pump. http://www.supramania.com/forums/showthread.php?t=53208

Car has no codes. 87 Supra Turbo. Car has trouble idling after about 2 minutes after starting. Fuel pressure and vacuum fluctuate a lot. I checked the fuel pump relay using my ohmmeter by measuring the continuity between terminals +B and FP. I get a reading and then it stabilizes at 0.1...

I replaced my EGR valve with a brand new one and tried 2 other ECUs -- same problem.

JJ posted help just for you: http://www.supramania.com/forums/showthread.php?t=46793&highlight=code+51 Check out the Toyota manual: http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=101 Check out what a TPS does: http://en.wikipedia.org/wiki/Throttle_position_sensor Check out...

Yes you can still use an electronic one. Like he said use one with a continuity beep.

Will do; I am going to do the boost leak test and then I am going to check the fuel system via the 87 TSRM. At that point, I may start going around the engine again with my multimeter.

A better meter for this test is an analog one with the needle - cheap $6 at Walmart. The TSRM speaks of when it "deflects", in other words when the meter's needle moves. Do you have anything that can test the voltage of the TPS when the throttle body is closed? For example my SAFC has a...