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The mkiv Supra Owners Club

Supra failure, sound like launchcontrol and wont rev


Guest anesn

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Hey, the car has been standing for about 5-6 months now, And i started the car for about 3 days ago gassed a bit in neutral was how nicely and evenly, as usual, switched it off. i didnt drive it but i rev it and it sounded just fine.. And yesterday when i wanted to fix the exhaust catalysators and the new air filter it started to act realy strange it didn't want to rev here is a movie of it ...

I don't realy know what the problem is , but some tips would help what can make a car behaving like this

 

ps im from sweden ty!

 

Updated:

 

http://www.youtube.com/watch?v=hsHosYelMJw

http://www.youtube.com/watch?v=c04buj_t-r4

 

NOTE THE HOWLING SOUND IS MADE WORSE BY THE CAMERA...

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  • 2 weeks later...
Guest anesn

Hey i called a supra friend and i took parts from her car it didn't help realy

 

Tried coilpacks, ECU, Sparkplugs map sensor, checked with a camera down into the cylinders looked good. Any more tips? what could it be

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Thats not the ignitor pack or wires to the coil packs though is it, also test the map sensor and there is a little black canister screwed into the plenum just infront of the IAC valve, remove that and make sure it is clear, it will have a small vac pipe on it.

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Guest anesn

i wrote a post earlier that says what i have dested, i've tested everything you wrote:P gonna check camshaft and crank shaft what OHM They have

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OK but you have not checked what I told you too, we have had a few do this and itrs been the wires to the coil packs shorting together in the loom, these looms are now old and the integrity of the wires is in doubt. As you seem sure you know best I will wish you luck and not post again.

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