V1 Joe's 2009 F40 SS/TC #470

[SmsDetroit]

Little project while sitting on the couch watching Tavarish rebuild the engine on his 675LT.

View attachment 43186

I mean we are basically building the same thing he is. Right

 

[comegetjoe]

I mean we are basically building the same thing he is. Right

Yes. *blink Absolutely. *blink

 

[ah.b.normal]

I mean we are basically building the same thing he is. Right

Sorry, Who doing What to a what? Links please?

 

[comegetjoe]

Good weather today. Uncovered the motor and tried to make sense of the wiring harness over the engine. I think I got a handle on most of it. Some things Im not sure of though.

These are on the belt side of the motor. I think the large one is the MAF that needs to be cut back like the video says, the other two plug into the head where I dont have sensors? What are those sensors, they're not in my old head either, I don't know what I did with them.

Alternator, just noticed.

I dont have a connector for the fuel connection, Im sure Im just missing something. The connector showing doesnt go there, but also cant find a home for that one either.

Just gotta keep at it.

 

[comegetjoe]

VVT solenoids. I either broke or lost them. Guess I should order them to seal the motor.
*edit, nm, buddy says they came with all of the new timing stuff I ordered way back, just gotta locate them.
*edit, found them and they come with hardware thankfully. We all know how good I am with threaded thingys.

 

[comegetjoe]

First real wiring question.
When triming the a/c and original fan connectors from the engine harness, I cut back pretty far and when I did I noticed that the ground on the left fell from the harness and is no longer connected to anything.

It may be an oops. Was this just the ground for the fans or a/c or does this ground play a larger role?
*previous owner map sensor wiring installation. Lovely, no?

 

[Rttoys]

That is A ground, but not sure where it goes.

but…..the crank sensor on the right looks like it has had the connector replaced. although they used the components supplied with the connector (in yellow), it’s not really done right, so now’s a great time to cut the butt splices out and solder it nicely. Plus, it looks like there’s a nick where the red circle is? Could be a future problem.

 

[comegetjoe]

That is A ground, but not sure where it goes.

but…..the crank sensor on the right looks like it has had the connector replaced. although they used the components supplied with the connector (in yellow), it’s not really done right, so now’s a great time to cut the butt splices out and solder it nicely. Plus, it looks like there’s a nick where the red circle is? Could be a future problem.
View attachment 43463

*crank, are you sure thats the crank sensor wires? I looked on rockauto and the connectors dont look the same and dont have the same amount of wires 3vs4.
Owner of the cobalt previous to this build did a bang-up job installing it. I will ABSOLUTELY be soldering and heat shrinking the wires. Ive taken pictures in the event those awesome and crispy connectors fall apart further. Gives me an excuse to buy a decent soldering gun. Crank wires, intercooler pump, heat exchanger fan, rad fan etc... lots of things to do right while I have the time.

*edit - just looked outside at it, you are correct @Rttoys, there is a nic in the wire on the end right at the connector that I hadnt taken notice to. Think its worth replacing the entire pigtail given how close it is to the connector?

 

[ah.b.normal]

Think its worth replacing the entire pigtail given how close it is to the connector?
[/QUOTE]
Are you kidding? That splice and stuff looks great! Don't touch it! It's like ART! ****
Not really, that is another electric prob just waiting to happen.

 

[comegetjoe]

Think its worth replacing the entire pigtail given how close it is to the connector?

Are you kidding? That splice and stuff looks great! Don't touch it! It's like ART! Not really, that is another electric prob just waiting to happen.
[/QUOTE]
Its within a fingernail to the back of the connector.
Now Im not even sure I know what connector it is. I thought it was a lower map sensor, but when @Rttoys said crank, i second guessed myself.

 

[Gtstorey]

Definitely not a map if it’s actually mounted where shown.

 

[comegetjoe]

Definitely not a map if it’s actually mounted where shown.

Time to dive into a diagram. Pretty sure the turbo cars have two. One in the manifold and one in the lower charge pipe. Will confirm...
*edit - this is why that connector has 4 wires, its a TMAP sensor that feeds back temperature also, as stated below.

That broken connection/butt connector was giving me a low boost circuit fault when the cobalt was running. We got the wire to sit in the connector and the car ran fine then as a temporary fix and the code went away.

 

[Metal Mech]

Do you need to come over and look at my engine. I know it’s different but I still have the harness attached to everything.

 

[comegetjoe]

Do you need to come over and look at my engine. I know it’s different but I still have the harness attached to everything.

Scotts gonna come over this weekend and use his years of knowledge to help me button it up. These weekend rain storms are getting under my skin, nice all week and then rain Saturday and Sunday.

 

[Metal Mech]

Scotts gonna come over this weekend and use his years of knowledge to help me button it up. These weekend rain storms are getting under my skin, nice all week and then rain Saturday and Sunday.

Oh I know how you feel. That was me when I needed to be outside stripping the donor.

 

[Rttoys]

*crank, are you sure thats the crank sensor wires? I looked on rockauto and the connectors dont look the same and dont have the same amount of wires 3vs4.

my color blindness added with some beer made it look like it was attached to the block. Sorry. Not exactly sure what connector that is.

 

[comegetjoe]

my color blindness added with some beer made it look like it was attached to the block. Sorry. Not exactly sure what connector that is.

100% sure its the TMAP sensor wire connector. I should've made the picture more clear and held the connector.

 

[Rttoys]

Looks like 4 wires off the connector and 3 after the buttsplices?

 

[Gtstorey]

I’m not following all of the post on the MAP sensor wiring, but the GM stage kits use a TMAP sensor in the intake manifold and they supplied a 4 wire connector but it only uses 3 of the wires.

 

[comegetjoe]

Hmmm. Im just following what Im reading off of the cobalt forums.

Maybe the one in the lower charge pipe actually sends back temperature and meters it. It would be right after the factory intercooler.