Blown ECU

[Wobba]

Car runs but idles very high. Opened ECU today and found this:





You can see scorch marks on the cover there, and one of the circuits has quite badly blown on the motherboard. Seen this before??

[stan]

cant really make anything out from those pics tbh.

are you sure you havnt just got an airleak?

[Wobba]

This may highlight it a bit:



My phone camera is shit, sorry.

I have checked and used jubilee clips on any of the pipework that may be leaking. One nut on the inlet manifold is not done up, as it's so hard to get too, but undoing other nuts has made no difference and the otehrs are all on tight.

I can hear no air sounds at all when i start the car, other than ISCV. When ISCV is blocked is instantly stalls, at mo it is idling at 2.4k revs. It should idle at 900/1000 rpm which is a heck of an air leak if it is one.

Cleaned ISCV 3 times thoroughly.

Checked sensors.

Car has been exposed to elements for some time and we have had some very wet weather, ECU could have gotten wet, and blown.

[stan]

yeah could be the case...try another ecu?

ive got a couple kicking about if you want to buy one...

[BristolSam16v]

As stan said only thing to do really, is try another ecu see if it works.

[Wobba]

yeah could be the case...try another ecu?

ive got a couple kicking about if you want to buy one...

PM'd!

[northy]

if its just a capacitor u can get it fixed?

[schakal]

if its just a capacitor u can get it fixed?

will probably cost near enough the same getting it
soldered etc and still will leave you in doubt whether the
actual board has any other damage .

i would scrap that and get a working ecu .

[eternalife]

^^^ Agree with the Jackal.
Could always take Matteh up on his offer too.

[Wobba]

I am used to dealing with blown parts on my PC and I've seen this sort of thing before. I'm just gonna get another complete one. I think the capacitor is ok, but theres another bit which has split open and molten metal seems to have seepeed through the crack.