External temp sensor help needed!!!??? - Page 5

jonnybriggs69 · 20-01-14, 12:00 PM

Perfect - Cheers guys!! It will be the weekend again now for me before I can look..... Can you access if car is on ramps or does the bumper need to come off?

R8NMG · 20-01-14, 12:32 PM

Quote:

Originally Posted by jonnybriggs69

Perfect - Cheers guys!! It will be the weekend again now for me before I can look..... Can you access if car is on ramps or does the bumper need to come off?

If you have access to a ramp then the front bumper doesn't have to come off. There is a little access panel underneath to fit the sensor.

jonnybriggs69 · 26-01-14, 05:11 PM

Right.... I've had a weekend of testing and trying to solve this problem.

I have tested the fan... It works fine.

I have tested the internal temperature sensor and the atc unit itself by using (mark s's) spares.... (Cheers).

I haven't yet been able to test the resistor pack so it seems that it must be this, however...... The blowers do come on intermittently....

So the next question is would the blowers still work intermittently if the resistor pack had actually failed or is it just failing? Orrrrr could it be something else?

Cheers

R8NMG · 26-01-14, 06:58 PM

These mk2 180 ATC resistor pack really are a pain in the backside. I feel for you as I am having similar issues.

What do you mean by intermittently? Does the fan goes fast, slow, fast, slow when you switch it on?

jonnybriggs69 · 26-01-14, 09:13 PM

Indeed! Thank you..... Same to you!

The problem I have is that I have no fans whatsoever for 95% of the time.... Every now and again the fans come on for a bit and then just go off again!

I was hoping to ascertain as to wether it is definitely this damn resistor pack or if it could be something else?!?!

petet16 · 26-01-14, 09:32 PM

If you have a multimeter, do the same checks that Ron has done on the fan connector, it's in his atc thread.

R8NMG · 26-01-14, 09:35 PM

Quote:

Originally Posted by petet16

If you have a multimeter, do the same checks that Ron has done on the fan connector, it's in his atc thread.

Pete when I receive this new fan, I think I will check the resistance on that one. Remember both my other 2 fans only gave me 2ohms so will be interesting to see what the new fan gives.

petet16 · 26-01-14, 09:41 PM

It should give a good number to compare against, 2 ohms didn't sound too bad, but it should maybe a lot less.

R8NMG · 28-01-14, 09:25 PM

Quote:

Originally Posted by petet16

It should give a good number to compare against, 2 ohms didn't sound too bad, but it should maybe a lot less.

Well received the new fan and it gave me 1.5 ohms.

R8NMG · 26-01-14, 09:31 PM

It will either be the fan or the transistor.

When I had mine on the final 3 max settings, the fan started to stutter. I think it eventually blew my transistor.

Fitted new transistor and it did the same thing with the fan stuttering. It turned out the fan is broken even though it still spins. Put a different fan on and the whole system works fine.

My problem it all started with a dodgy fan and it led to a bigger problem.