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The mkiv Supra Owners Club

Idling problem, help required


RiceRocketUk

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Ok people, my new car arrived yesterday from Japan with slight damage to the underside of the front spoiler, which considering how low it is I got away likely. However, the damage occured when they went to start it and it would`nt start properly, they put this down to a flat battery. They towed the car, thus causing damage to the spoiler around the tow hook. We put a new battery on the car, and it starts but it wont idle. The minute you take your foot off the throttle, it stalls. I know the mitsubishi`s suffer from this due to an idle control valve, can anyone help and advise why this would be happening.

 

Thanks for any help in advance

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I had a similar problem to this - turned out that one of the vacuum hoses had blown off the plenum on high boost. Might be worth checking the vacuun hoses around that area. I'm not technical by any stretch of the imagination but it might be worth a look!

Good luck!

Paul

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Which model of Supra have you imported?

Check the Fuel Pressure Regulator is connected to a vacuum hose. It's ontop the fuel rail on the throttle side (small bronze/black unit) it should have a hose on it running to the plenum.

 

Check all other vacuum hoses.

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Which model of Supra have you imported?

Check the Fuel Pressure Regulator is connected to a vacuum hose. It's ontop the fuel rail on the throttle side (small bronze/black unit) it should have a hose on it running to the plenum.

 

Check all other vacuum hoses.

 

hi, its a 6 speed Twin turbo

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If the battery was disconnected would this mean the ECU was reset? If so I thought the ECU had to 'find itself' to idle properly again...

 

Maybe wrong, thats just what I thought as when I changed my battery this happened but after a reasonable drive it idled fine and started fine.

 

Gaz

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