V1 LeoZug's Montana Street Goblin - '05 Cobalt SS donor

[Gtstorey]

Oh man! My MAF is backwards?

Actually, the intake pipe is backward since the maf will only go into it one way.

 

[Leo Zugner]

Oh it would be amazing if that’s all it is! I’m gonna check it at lunch.

 

[Desert Sasqwatch]

If this is not something the tuner didn't check first, then I'd have to question his abilities.

 

[Gtstorey]

If this is not something the tuner didn't check first, then I'd have to question his abilities.

Depends on how much he deals with swap vehicles.

 

[Leo Zugner]

He mostly tunes vehicles that are factory assembled. and he’s my only option.

 

[Leo Zugner]

Ok! So I switched the MAF around and it fires up and holds idle! The only issue now is that when I turn the key off and even take the key out, the engine keeps running for about 3 seconds. Maybe it’s super rich and is dieseling? Or maybe the computer is purging the fuel even with no power?

 

[comegetjoe]

Depends on how much he deals with swap vehicles.

Cars with MAFs that are SWAPped around!

Ill see myself out

Ok! So I switched the MAF around and it fires up and holds idle! The only issue now is that when I turn the key off and even take the key out, the engine keeps running for about 3 seconds. Maybe it’s super rich and is dieseling? Or maybe the computer is purging the fuel even with no power?

No, none of those reasons. It happens. Someone can explain why better than I can. Its an easy fix.

 

[Leo Zugner]

Ok! MAN IM CLOSE!!!!

 

[Gtstorey]

(1) V1 - Intercooling fan and car not shutting off... | DF Kit Car Forum

 

[Traé]

Ok! So I switched the MAF around and it fires up and holds idle! The only issue now is that when I turn the key off and even take the key out, the engine keeps running for about 3 seconds. Maybe it’s super rich and is dieseling? Or maybe the computer is purging the fuel even with no power?

You need to install a diode in the power wire to the fan, when you turn the car off the fan back feeds power and keeps the car running for a few seconds. I can ship you some diodes if you want as I have extra.
Just PM me your address and I’ll mail them out today or tomorrow.

 

[Leo Zugner]

That would be incredible! Not sure how many diodes are in Bozeman stores lol.

 

[Mahkoi]

That would be incredible! Not sure how many diodes are in Bozeman stores lol.

I wouldn't let you it stop you from running the car if it takes some time to get them. Mine runs for about a second and a half after I turn it off but I just haven't felt like taking the time to put the diode in.

 

[Leo Zugner]

I couldn’t resist running it a little. I might do a little trip down the driveway!

 

[Mahkoi]

Do it!

 

[ah.b.normal]

Oh man! My MAF is backwards?

yup...... Not the first, not the last, just the latest. Arrow shows which way the air is a'goin'! Smile, this is a happy discovery! There is no crying in baseball or car building, well ok a little.

 

[ah.b.normal]

I'm pretty sure the run on after shut off ain't hurting anything, SO DRIVE IT!{and try not to get yerself arrested!}

 

[Leo Zugner]

I'm so pumped! got the static tune done last night. gonna fix a few leaks and tighten bolts then drive!!!!

 

[Leo Zugner]

DROVE THE GOB!!! On Saturday I checked my lug nuts and all seemingly "vital" bolts and did the first drive. It was amazing. It's so light and nimble. I only went about 15mph and just got into 2nd gear, but it was amazing. It felt like a wild animal eager to pounce. All seems good save for a very small coolant leak (maybe a drop per 10 min?), and I see a brake fluid drop here and there but cant find an obvious source. Maybe its from before I tightened the lines?

The other issue is that when I was driving this last time, I'd push the brake and it worked fine but a few times it didn't return on its own. I had to hook my toe under the pedal to pull it back. But then back in the garage, I pumped it a few times with my hand and it seemed normal. Any thoughts on where to start looking for the fix?

 

[Ross]

The brake fluid dripping issue, I would back the brake line nut off, and jam it on again. Reseating these often takes a few tries.
As far as the brake pedal sticking, did you make the mistake of putting the foam in the middle. The foam goes on the outside.

 

[Leo Zugner]

Ah ok. I'll check that. Thanks!