Cobalt down, dealer can't figure it out.

[SillyBILLY.]

Ok guys, here's the story.

I took off my TVS, went back to the stock blower.

While re-flashing the stock tune, laptop died, activating the VATS, locking me out of the ECU.

Car would not crank, nothing. Prior to the reflash, it was in perfect running order.

Towed it to the dealer, asked them to unlock the ECM, then reflash the stock tune.

They did that, but now it will only crank, no start.

Any ideas?

They've had it since tuesday...

they reflashed it, but did they do a VTD relearn? if the ECM lost its cal during programming it could have easily forgot the VTD password. hopefully they thought to do that, but you never know. Have they told you anything? any codes? whats VTD data say? is check engine light on steady or flashing? security light, etc......its gonna be hard for you to fix the car if they have it

To answer the question above, i couldn't even connect to the car.

Maven, Jimbo was here, and we tried to connect via HPT. The VATS light flashed really fast, like an old school dial up modem when we tried to connect.

They told me that it had a fuel pump code, but i'm sure that was left over from me pulling the fuel pump relay to bleed off fuel before swapping injectors.

So far i've said everything they've told me. What is the VTD? I'll call the service department monday with any options you may have. I tried to talk to the tech friday, but they "couldn't get ahold of him"

My car has just been sitting in the back of the lot since wednesday as far as i know.

The story so far... any idea's are welcome.

[USMCFieldMP]

any idea's are welcome.

Don't flash the car with a low battery.













Other than that, I'm not too sure. Have you been able to mess with the car since they've had it? If so, can you hear the fuel pump come on and run? Check the basics. Fuel and spark. You DID remember to plug the injector harness back in after you swapped them, right?

[SillyBILLY.]

Lol, yeah the injector harness is plugged in. Thanks though.

The code it's throwing is P0230. I'm wondering if something as stupid as the relay going bad could be causing this. I'm gonna go in there monday, and test that theory.

[montecarloman]

I found a general dtc descrption, never run into that code before. Apperantly the ecm isnt seeing the correct voltage to/for the fuel pump. Without GM SI though I cant look up the dedicated GM description. May be as simple as a blown fuse. What year/model do you have?

http://www.obd-codes.com/p0230

[Omiotek]

P0230 is the main fuel pump circuit malfunction.....typical bs on a lot of gm cars

[qwikredline]

Next time leave well enough alone. Self inflicted wounds dont count. etc. sad panda.

[edubs]

When I had cams installed in my car back in 06' by the dealer, they messed up the timing and it fried the VATS module on the steering column from multiple start attempts. Pretty sure that is part of the overall fuel pump circuit. Have they verified that is operational?

[SillyBILLY.]

When I had cams installed in my car back in 06' by the dealer, they messed up the timing and it fried the VATS module on the steering column from multiple start attempts. Pretty sure that is part of the overall fuel pump circuit. Have they verified that is operational?

Which part are you asking about? VATS on the steering column?

[SillyBILLY.]

Next time leave well enough alone. Self inflicted wounds dont count. etc. sad panda.

That's why i'm going back to stock, but apparently even that isn't simple.

[qwikredline]

maybe edubs has the answer. the fact is, while putting it back to stock, something probably got disturbed or missed. Its simply not easy to work on these cars if you dont have the technical background to do the job right.

FYI, liz knuckles and wheel bearings were junk, just corroded into place and not worth fixing. I will send Haverty new knuckles for his project, as the ones he was to get went to Liz car as part of her CED field rescue. Her old calipers had a seized slider in one caliper bracket. A lot of corrosion, from the environment she drives in, and probably from not servicing the sliders. Especially inside the calipers, a lot of corrosion, due to not changing brake fluid annually I would expect. I threw away the caliper with the broken bleed nipple, it was not worth the time to screw with it,new ones are very inexpensive.

If you look at recent history- liz caliper, rissa's IM swap, your latest misery - you all should conclude that mechanical work like this is best done with help and supervision from a Maven type.

[SillyBILLY.]

When i put the stock stuff back on, still with the TVS tune, i test started the car, just to make sure everything was connected right. It turned over and started, barely ran because of the tune, so i turned it off. But i know at least that before the tune, mechanically, it all worked.

As far as Liz's caliper, i messed that one up. I'll take that. I was not there for the re-installation of Rissa's im. I simply helped walk them through the removal.

This, i'm stumped on. As far as i knew, i just lost the tune file and needed to unlock the ECM. All the rest of this fuel system stuff is really weird.

[edubs]

Will, the module I'm speaking of is an "L" shaped module in the steering column right by the ignition cylinder...

[qwikredline]

Will, the module I'm speaking of is an "L" shaped module in the steering column right by the ignition cylinder...

thats the black anti theft thingy on tthe bottom of the lock cylinder you talk of? Breaks if removed?

I think its more likely that the running out of battery in the middle of a flash has done bad things to the pcm. ugh

[edubs]

thats the black anti theft thingy on tthe bottom of the lock cylinder you talk of? Breaks if removed?

I think its more likely that the running out of battery in the middle of a flash has done bad things to the pcm. ugh

Yeah, it's a PITA. Dealer went through three of them trying to get my car running again. It's a very touchy piece. If it is fried, car will not start at all. That's why people doing timing have to be very careful about not setting it up 180* off...

[Maven]

Will VTD is vehicle theft deterrent, what you guys ar calling VATS. If you can get HPT to even access the ECM its highly likely something is screwed.

[SillyBILLY.]

Will VTD is vehicle theft deterrent, what you guys ar calling VATS. If you can get HPT to even access the ECM its highly likely something is screwed.

Well, it appears that the ECM was simply locked, and that they were able to unlock it just fine with the Tech2 and reflash it.

They claim the "fuel pump relay was incorrectly installed" I know for a fact that it was in the right place, because i checked that when it wouldn't crank, and when i went to go look at the car at the dealer, i checked it again. So i really don't know what was wrong with the car. I didn't want to call them out on it because i honestly didn't care, i just wanted my car back. I probably won't be going back to them for any service however.