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The mkiv Supra Owners Club

No spark from coil!! e-manage ultimate? **FIXED**


ballsdeep

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Me again.. I can't seem to get to the bottom of this, Iv checked the loom for shorts but seemed to check out ok, even replaced parts to do with ignition, like:

 

Plugs

Leads

King lead

Distributor cap

Coil

Igniter

Ecu will be getting replaced when it arrives.

 

What else could it possibly be?

 

The car starts up as normal but then less than a minute later will just switch off like Iv turned the key, this then shows code14

 

When it first started cutting out I found this but replacing these bits didn't fix the problem.

 

image

 

The only work carried out before the issues was the water pump and cambelt?

 

Any sparkys local to sale / manchester want to come and fix my car :(

Edited by ballsdeep (see edit history)
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when they did the cam belt they not damage or put back wrong the star thing and sensor near crank pully

sorry if this sounds vague but im sure somebody else will explain better

 

Think this is only on the TT mines na-t

 

Changed the Rotor Arm?

 

Rotor arm was changed a month or 2 before.

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I would suspect the trigger coils in the distributor.I have seen them start to play up of late. One "sees" TDC, the other effectively reads cam angle. A new distributor will be heavy money, so a used one is probably the best way to go. A garage with a `scope could check the disi out, before you commit to changing it.

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But that would not create a code 14 error.

 

To be honist I didnt even look to see what 14 code was , The fuel pump would cut a car out and its simple to check thats why I surgested it .

 

you your self once told me that the supra is not magical and only needs 3 things to run

 

fuel

spark

timing

 

and air but thats a given

 

So I was just ticking 1 off the list :) As if it was runing smooth before it cuts out you could almost eliminate timing unless faulty sensor or signal

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Cheers guys I checked with my local garage and they don't have a scope to check the dizzy out either that or they just don't want to do it! So Iv got a number for a auto electician hopefully he will have one?

 

Another Fuel pump ecu has also been tried that as well as putting a constant 12v to it. No joy :(

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Been out to test the IGT and IGF signal using a multimeter until I can get someone out with a oscilloscope (which won't be until next week now) :thumbdown:

 

IGT - 1.3v when cranking (should be 0.5-1.0)

IGF - 4.9v with ignition on and stays 4.9v while cranking

 

Going from the tsrm the IGT is not within spec and suggests to try another ecu. If that's the case it will be the second Ecu within the last 6months so something's not right? Il update when I receive my spare ecu

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That's very good of you mate but I already have 2 of everything. the coils are within spec, the distributor, king lead and rotor arm is brand new and the igniters although I can't test surely both can't be faulty. one of them is from a 60k car I got off Keron!

 

I have another ecu on its way to me too! If this doesn't cure the problem Im handing it over to a auto electician to figure it out!

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Maybe a broken wire in your loom then. What about your dizzy cap. Have you changed that ?

 

Sorry that's what I meant, the dizzy cap is brand new, the distributor will be the last thing I change once it's been checked out with a scope.

It could be a break in the wire but Iv done a beep test on every pin on my patch extension and on the IGF and IGT wires? Il double and triple check tomorrow!!

 

Just a thought, is your car lowered? Has the wheel maybe made its way through the loom in the wheel arch?

 

I have bilstein suspension but Im fairly sure its ok, I think you was on the money with the igf signal but I'm getting 4.9v with ignition on and cranking?

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Well I swapped out the ecu today and it still won't fire!! There's only the distributor that hasn't been changed now! So auto electrician will be getting a call tomorrow I just hope he is equipped with a scope?

 

I checked the timing but need someone to confirm its ok as I have no idea! When camshaft marks are lined up with timing cover marks the crank lines up with 0 is this right?

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