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The mkiv Supra Owners Club

need help engine wont start


matts-supra

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hello

first off its a 94 jspec 2jzge auto

converted to manual r154

engine ran and sounded fine when i got the car, but had to remove engine to repair damage to front of car.

as it was out i stripped it down cleaned everything and fitted a tt gasket ready for na-t setup.

rebuilt fitted gearbox and fitted back into car.

 

engine turns over but doesn't start.

i tested the compression all cylinders are around 150 psi which from what ive read online is correct for my setup with the tt gasket

i then tested the injectors all at 13ohm resistance removed them and cleaned them.

i then tested the coil resistance was out side the manuals limits so i brought a new one

no difference, i took apart the distributor the arm was worn and all the contacts as well

i had a spare distributor on another engine so fitted that. engine tried to start or at least seemed like it

took that distributor apart and again the arm in that one was worn as well. decided to buy a new cap and arm.

seems to try to start occasionally but then will turn over fast then struggle then fire but die straight away.

i tested the resistance of all the coil leads all ok. removed the new ngk Iridium #7 i had fitted and put in some used ngk r plugs.

still no better.

ive checked all earth points and even had jumper lead on engine to battery.

there's no error codes being shown.

 

im running out of things to check any help would be greatly appreciated

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the cam sensor is part of the distributor i believe and as ive tried 2 difference ones don't think its that.

i don't believe the na has a crank sensor or i haven't found one if it does.

the tps is connected i do have a spare i could try but would that stop the engine from starting if it was faulty.

thanks

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yeah i can hear the pump prime and when i took the plugs out they were all wet that lead me to believe that i had fuel but no spark or a weak one.

 

i even put some more 99 oct fuel in as has been sat for over a year and tank was low.

 

and yeah ive joined the cables from the auto box.

Edited by matts-supra (see edit history)
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ok i fixed it.

was probably something i should have double checked earlier.

when i set the distributor up i was going on what i believed to be the timing marks.

didn't realize how much it moves round when being inserted in to the head.

so i just set the engine to tdc and removed the dizzy cap to see the arm almost 180 deg away from number 1

so after realigning the rotary arm and reassembling, it started first turn of the engine

yay one happy man, now to put the rest of the car back together and set the timing with the gun.

thanks for the input guys

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