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Re: Matt's 87 4ktq -

Posted: Mon Sep 09, 2013 6:49 am
by highlander69
Hey Matt,

Just got back from Watkin's Glen.........what a weekend. Some of the cars :drool: :drool: :drool:

Hopefully we can make this happen on Wednesday. I'll bring my scope. tools etc.

We can check everything............ Cam/Crank correlation, inputs, outputs etc.

Looks like it's going to be a fun diagnose.........hopefully we can get it sorted out. :drive:

Cheers,

Craig.

Re: Matt's 87 4ktq -

Posted: Mon Sep 09, 2013 11:20 pm
by PRY4SNO
Back in the day videos were promised.


Just sayin'.

Re: Matt's 87 4ktq - "4 FOX SNAKES"

Posted: Tue Sep 10, 2013 6:03 am
by chaloux
Haha! I actually do have one vid when it ran good for 15 minutes. I'll upload it tonight.

Re: Matt's 87 4ktq - "4 FOX SNAKES"

Posted: Wed Sep 11, 2013 7:06 am
by chaloux
Hopefully dad + Craig + scope = fixed today. I eagerly await their report.

Re: Matt's 87 4ktq -

Posted: Wed Sep 11, 2013 12:19 pm
by vt10vt
Also eagerly awaiting status updates!

Re: Matt's 87 4ktq -

Posted: Wed Sep 11, 2013 1:34 pm
by 85oceanic
x2!

Re: Matt's 87 4ktq - "4 FOX SNAKES"

Posted: Wed Sep 11, 2013 1:39 pm
by chaloux
Alright ignition fixed! Seems that a common input ground, pin 30 or 36, went to nothing. They grounded that out and now it runs fine!

But now the problem is injector 5. It is duty cycling 100 percent. But only when the car is running, not with just ecu power on. They said they metered it out and is the ecu telling the injector to be on... Any ideas here? Also plugging it in seems to stall the car. I got out of school early so I'm headed to the shop now.

Re: Matt's 87 4ktq -

Posted: Wed Sep 11, 2013 2:33 pm
by 85oceanic
Shorted out injector?

Re: Matt's 87 4ktq - "4 FOX SNAKES"

Posted: Wed Sep 11, 2013 3:04 pm
by chaloux
Seems to be. Case off vems, runs perfectly.

Re: Matt's 87 4ktq - "4 FOX SNAKES"

Posted: Wed Sep 11, 2013 4:02 pm
by chaloux
Shoot. I put the case back on after taking apart the ecu and it still does it! Must be making contact somewhere else... WTF

Re: Matt's 87 4ktq -

Posted: Wed Sep 11, 2013 7:13 pm
by highlander69
All better now.

Matt you were so close with the ecm case theory, however no dice.

It's a running perfect now. :flag:

Now go and enjoy :drive:

What a day :nuts: I'm mentally fked.

Cheers,

Craig

Re: Matt's 87 4ktq - "4 FOX SNAKES"

Posted: Wed Sep 11, 2013 7:48 pm
by chaloux
Thank you Craig... Seriously.

Re: Matt's 87 4ktq - "4 FOX SNAKES"

Posted: Wed Sep 11, 2013 7:52 pm
by chaloux
Not enough thanks possible.

Re: Matt's 87 4ktq - "4 FOX SNAKES"

Posted: Wed Sep 11, 2013 7:53 pm
by chaloux
I think Craig gets medal of honor. Do we get board awards? Lol

Re: Matt's 87 4ktq -

Posted: Wed Sep 11, 2013 7:59 pm
by Audiurq
Dr. Cook to the rescue once more, where was Robin (Mr P)? :hail:

Hang in there Matt, they've kept me (nearly) sane :hammer:

:lol:

Re: Matt's 87 4ktq -

Posted: Wed Sep 11, 2013 9:27 pm
by loxxrider
Woooooooooohooooo! I want to hear the whole story.

Re: Matt's 87 4ktq -

Posted: Wed Sep 11, 2013 9:39 pm
by vt10vt
Me too! What was the end game?! Congratulations, its good inspiration coming home to this after my night.

Re: Matt's 87 4ktq - "4 FOX SNAKES"

Posted: Thu Sep 12, 2013 5:56 am
by chaloux
vt10vt wrote:Me too! What was the end game?! Congratulations, its good inspiration coming home to this after my night.


That doesn't sound good...

I believe dad said it was legs of fets touching. So I have to be super careful reassembling the ecu. I even put electrical tape on the case as extra protection but I if it was the fet legs it makes sense that that didn't help.

I still can't drive yet because I have a bunch of buttoning up to do. I have to reassemble the harness plug, run a ground, reassemble ecu, tighten weeping oil supply on turbo, and mount the ecu up in the footwear. And I need fuel and to change the oil.

I'm just thankful the issues are known. What a c-fak.

Re: Matt's 87 4ktq - "4 FOX SNAKES"

Posted: Thu Sep 12, 2013 5:57 am
by chaloux
chaloux wrote:I believe dad said it was legs of fets touching.


Or somehow fets touching. Not sure on details, went and saw Alt-J last night

Re: Matt's 87 4ktq -

Posted: Thu Sep 12, 2013 8:12 am
by EDIGREG
finally! Craig is the man!

Re: Matt's 87 4ktq -

Posted: Thu Sep 12, 2013 8:19 am
by highlander69
Thanks guys :D

I'll do a little write up if Matt's okay with that.

Alot of WTF,really :bangshead: and so on.

It was great working with Marcel. We seem to make a good team.

Cheers,

Craig

Re: Matt's 87 4ktq - "4 FOX SNAKES"

Posted: Thu Sep 12, 2013 9:20 am
by chaloux
But of course! You guys were on a roll until I got there ;-)

Re: Matt's 87 4ktq -

Posted: Thu Sep 12, 2013 3:05 pm
by 85oceanic
Congrats on getting things figured out man! We need VIDS ASAP.

Re: Matt's 87 4ktq -

Posted: Thu Sep 12, 2013 3:40 pm
by PRY4SNO
Looking forward to the write up :)

Glad to hear you're close to making new videos for us to drool over and procrastinate with.

Re: Matt's 87 4ktq -

Posted: Thu Sep 12, 2013 5:53 pm
by highlander69
I should have a write up by tomorrow guys.

Cheers,

Craig