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Does it matter weather your ECU is grounded to anything or not. Reason Im asking is I just got my 84 Supra with the 7MGTE conversion running Pretty well. But the ECU is just sitting behind the Glove box. Its not grounded to anything at this time. Basically, Its just sitting there on top of the...

THANK YOU.....THANK YOU.....THANK YOU That was my Problem. Firing order was all Screwed up. Now she isnt poping or hesitating or anything like that. Runs like a champ. Thank you all for the Information. You are a blessing to us all Robert

Ok, thank you. I will check them tomorrow. Im hoping that its something that simple. As much time and money Ive put into this car, I m very much ready to drive it. Robert

Ok. The reason I was asking is because when I had my engine built. The guy wrote the Firing order on the top of my coils. WHICH IS 1-5-3-6-2-4 So it this wrong or right..... A simple yes or no will do. Thanks Robert

Someone please tell me that I dont have my wires crossed. Last word that I got was the wires were 1-5-3-6-2-4 Is this correct or has this been my problem all along. Robert 84 Toyota Supra with a 7MGTE Turbo Transplant

Ok, Well here is my Problem. I got the HAC sensor installed back into the car. Now, The car starts up fine, Its just when it warms up, I start to get a pop from the Exhaust, Everytime it pops, I get a Small amount of black smoke. If I rev the engine really fast, It sputters and I get alot of...

Hey all, Just a Quick Question for you. Have a 88 Supra Turbo. Was wondering what the Purpose to the HAC Sensor was and If its not connected, Will it make the engine have a Small Backfire or Hesitiate to Accelerate. Robert

Thnks for the Info on the Wire, I went out today and looked at my car. Ofcourse it wasnt there so I grounded it. Now I dont that the Timing Issue where the Timing mark is Jumping around. I still have the Sputter and the Poping sound through the Exhaust though. I problem Down, 2 more Problems to...

Would this cause any of the Symptoms that we are having. I know for a fact that mine isnt grounded. I took atll the 10mm bolts off, Unpluged the coil lines and just picked the entire coil Assembly up. Robert

OK, Since you mentioned Coil Pack Ground wire, Where is this thing located. I can unscrew the Bolt and Pull my coil packs right off. Dont see a Ground wire anywhere. Mine Backfires and Sputters at Idle and Under a Load. Working on this Problem for 2 weeks now. Robert

Well, Ive done a few Diagnostic on the ECU, I have 12 volts to B1, B2, and E1. From there, Its says try another ECU. I dont want to buy another one if there isnt anything wrong with this one. Im getting really good Spark, It Idles fine and all, Its just that when you give it gas, It want to...

Ok all, Here is one for you. We at a site called celicasupra.com do a few conversions from a 5mge to a 7mgte. Now with this conversion the problem we are having is the engine will start up pretty good in the morning while its cold, As soon as it warms up, It starts to pop like a small backfire...