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The mkiv Supra Owners Club

Crank position sensor on an N/A???


ChrisSZ

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Anyone know where this is??

 

Matt Harwood's been round to help me try and get my car started - we got an error code 12 = crank position sensor.

 

Problem is we can't sem to find it at all - no sign of any wiring going into that area at all:(

 

Does anyone have any idea where/how we can find it/pics/anything please???

 

:)

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Well, got the car jacked up and under-tray removed (found an 8mm allen key I lost when I first got the car :)) and still not sure if I can find the crank position sensor????

 

The nearest thing I can find is a slightly rusty cylinder (about 5in long) under/behind the alternator which seems to be bolted onto the underside of the water pump area. I can't see any wires coming out from it though or any sign of somewhere to connect wires.

 

Most confusing grrr.

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I have had a search on supraforums and it seems like the na does not have one, as when people fit the aem ecu they need to also change the oil pump to a tt item so they can also fit a crank sensor, are you sure the error is crank sensor and not cam position sensor?

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Code 12 = crank position sensor - unless the error codes on an N/A are different??

 

Cam position sensor sounds more possible as that area has been "tampered with" recently! Any idea where this particular item is located please??

 

Cheers mate - dunno what this bit I've just taken off is then??

 

image

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had a look at my spare engine today and there no crank sensor on the engine:search: the bit you have taken off is your timing belt tensioner so DO NOT TRY AND START YOUR ENGINE. and the tensioner will have to be pushed back and locked before refitting.

 

Aw bollox:Pling: :Pling: Cheers for the heads-up mate. I'll bung it back on tomorrow then (it's a real pain in the ass to get to :(). Do you know if the error codes are different betwen an TTand an N/A? We get a code 12 - crank position sensor but if the car doesn't have one what's causing the code??

 

Cheers again :D :d

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So if it's in the dizzy it can only work correctly if the timing is correct and as long as the belt hasn't slipped a tooth or something then? As the Dizzy is only driven by the camshaft.

 

Not saying it's wrong or anything, just seems strange, especially as the EPC shows a definite "Crank Position Sensor" for the NA.

 

Definately nothing there apart from the tensioner

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OK, all bolted back together (cam belt tensioner refitted) -

 

a) how do I reset the tension on the cambelt (do I need to since nothing was moved?)? and

 

b) there is no sign of anything bolted into the head near the rear hook!! There's an earth strap on the right (drivers side) and what looks like a hole with a bolt either side (bolts still in place) on the other side!

 

Conclusion = cam position sensor is located in the dizzy on a J-spec N/A.

 

Does this sound right to people? What should be my next move (still got the code 12)??

 

:) cheers in advance :)

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I have had a look through the electrical component locator on the repair manual and on the epc, and I cant find anything for the ge engine regarding either cam or crank sensors, all the other sensors are there oil, water, knock, oxy, throttle, best asking Chris Wilson

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I have had a look through the electrical component locator on the repair manual and on the epc, and I cant find anything for the ge engine regarding either cam or crank sensors, all the other sensors are there oil, water, knock, oxy, throttle, best asking Chris Wilson

 

 

Er, you are right, weird. The EPC shows a picture of one, as you can search for the word "CRANK" and it comes up with the picture of it. BUT, when you click to get the part number it says "Not Applicable", strange. It is especially strange as the small bolt that it shows to hold it in place has a part number for it? :blink:

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Looking more and more like it's dizzy related then.

 

Anyone know what a code 12 indicates on an N/A??

 

 

per manual

 

No NE or G1 and G2 signal to ECU for 2 sec or more after cranking.

 

(where NE G1 and G2 are the three 'pickup coils' in the distributor)

 

there's a whole diagnostic chart and procedures etc

 

Its ref EG-510 to 513 if someone with CJ's manual can pop this up.

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