Cold no-start

Andrew in Calgary · Post by **Andrew in Calgary** » Tue Feb 17, 2009 10:49 am

Running behind this morning thanks to my car that won't start, so not a lot of trouble-shooting thus far.

Engine cold, cranks fine, fuel pump running and fuel being pumped through the system but not yet sure if the injectors are firing. Gives a half-hearted almost-start when first cranked, but gives up shortly after that and just cranks without any evidence of ignition.

I know I can figure it out - I have enough tech info on hand and I am a mechanic afterall, but is there a likely culprit here I should look at first?

1st 5er · Post by **1st 5er** » Tue Feb 17, 2009 6:21 pm

Being that I lack expert diagnostic capabilities, I'll just take a WAG;
Cold start relay or AFM connector.

Now I'll relax and await the professionals and hopefully learn something,
but more than that hopefully be able to remember it if/when the need arises.

Techboy · Post by **Techboy** » Tue Feb 17, 2009 10:39 pm

Check spark and injector pulse (with a node light) and let us know what you have or dont have.

Andrew in Calgary · Post by **Andrew in Calgary** » Wed Feb 18, 2009 11:24 am

I went out to the car this morning, asked it kindly to please start, hit the key and it jumped to life immediately. Gremlins I suppose.

Mike W. · Post by **Mike W.** » Wed Feb 18, 2009 11:11 pm

For future reference... It shouldn't be, but it has happened to me that I flooded it one time in cold weather. Anyway, if you even suspect it might be flooded, and it's unlikely, but possible, unplug the ECU in the glove compartment, with the key off of course. Then try and start it. If it's flooded, it will briefly fire up and rev for a couple of seconds, then die again. But that's ok, with the key off, plug the ECU back in. You have now burned off the excess gas that had it flooded, and warmed up the plugs just a little bit. It should start right up.

Bob in San Jose · Post by **Bob in San Jose** » Sun Feb 22, 2009 4:10 pm

My previous 79 had this problem when it would get cold here. Living in Northern California that means the high 30's. I would just remove the fuse for the fuel pump and then follow Mike's routine.
I have owned 4 different e12's and this was the only one that exhibited this problem.

Andrew in Calgary · Post by **Andrew in Calgary** » Sun Feb 22, 2009 4:50 pm

I'm fairly certain it was flooded. I'd let it sit for a couple of hours and it still wouldn't fire up but the next morning it lit off instantly. It needs a general tuning one of these days anyway and I suspect it's state of tune combined with the weather and my finicky ignition key conspired to leave me flooded.