Car broke down - ODB error codes 14 and 24

[yoshi123]

- where is this located?

- how do I test it?

[pwpanas]

Originally Posted by yoshi123

- where is this located?

- how do I test it?

On the US-spec Mkiv TT, the intake air temp sensor is part of the MAF, and is tested by checking the voltage between THA and E2 of the ECM connector...as well as the resistance between pins 3 and 4 on the MAF. All of this is in your TSRM.

[yoshi123]

Thanks I'll check that too. Haven't done anything with the car, I need to allocate a day for testing and get my friend over.

[interested!]

Hi! have you checked out the earth return at the coil pack to cylinder head , this could be intermittent if stiffened and corroded , always a good idea to boost wiring gauge ( double-up ) and lengthen to improve flexibility = make a new one ! and see if that makes any difference - worked for me, mine was just about to fall apart!- talking about my mk 3 -7mgte here!

[yoshi123]

OK, at long last I get round to taking the engine cover off.

As we did a spark test, we noted a connector at the back came out really easy.

Hmmm...

Then we notice 3 clips are broken and silicone sealant is used to hold them together. The clip that came out really easy, the silicone was completely broken.

http://imageshack.us/f/19/aristo.jpg/

We then plugged the lose connector in and ran the car for 40mins in idle, it did not cut out (typical 10-15 mins then cut out before). So I think this is probably the cause of the problem. I need to do more testing, but it looks promising.

My guess is the clips broke during a spark plug change and my mechanic sealed them.

My questions :

- what is the part number for these clips?
- I see 3 with silicone sealant, are there any more clips than the 3?

[pwpanas]

Originally Posted by yoshi123

OK, at long last I get round to taking the engine cover off.

As we did a spark test, we noted a connector at the back came out really easy.

Hmmm...

Then we notice 3 clips are broken and silicone sealant is used to hold them together. The clip that came out really easy, the silicone was completely broken.

http://imageshack.us/f/19/aristo.jpg/

We then plugged the lose connector in and ran the car for 40mins in idle, it did not cut out (typical 10-15 mins then cut out before). So I think this is probably the cause of the problem. I need to do more testing, but it looks promising.

My guess is the clips broke during a spark plug change and my mechanic sealed them.

My questions :

- what is the part number for these clips?
- I see 3 with silicone sealant, are there any more clips than the 3?

http://www.mkiv.com/techarticles/par...ess/index.html

[yoshi123]

awesome!

How many do I need???

[pwpanas]

Originally Posted by yoshi123

awesome!

How many do I need???

Um...how many broken coil connector clips do you have???

[yoshi123]

I can see 3 broken clips, just wondered if there were any more underneath all the cables?

[pwpanas]

Originally Posted by yoshi123

I can see 3 broken clips, just wondered if there were any more underneath all the cables?

Nope...on the Mkiv Supra Turbo's non-VVTi 2jz-gte (US-spec), the coils plug directly onto the spark plugs. There are six clips in total from the harness to the coils - I'd recommend you replace all six of them, since all six are likely damaged due to heat (some a bit more than others of course, but I doubt even one is like-new).