kainedogg

iTrader: (23)

Correct. Not 12v on the black wire.

The MAP sensor is in the back of the manifold, yes? I will check that out as well.

Now do the O2's need to be hooked up? I haven't bought any extensions yet so they are disconnected. Everything else is plugged up.

lemons12

iTrader: (71)

The o2s aren't going to cause your issue.
The map is on the back on the intake next to the OPSU.

Racetronix has the extensions for 15$/piece. Or the C5 o2s on Ebay for like 65$ shipped, which I recommend over extensions.

aknovaman

iTrader: (7)

Here is a novel concept. How about data logging what is going on instead of guessing. Data logs don't lie,

kainedogg

iTrader: (23)

Thanks Lem. You still hanging with Caleb? I know he left Tampa to head back your way.

Novel concept indeed friend, if I had the means. For now it's just basic trouble shooting.

lemons12

iTrader: (71)

Yea man.. We are heading to a big car show on Saturday and probably the track on Sunday! Nice having him back!!

kainedogg

iTrader: (23)

I bet it is...lol. Hope his Z06 is still beasting.

Now back to my woes, anybody have a actual pin out of how the wiring harness should be for the map and maf? It's an aftermarket harness so for all I know the pin layout could be wrong.

aknovaman

iTrader: (7)

Pm me your email. I need to know yr make and model of file loaded in pcm. At the least, the pcm service number, if you can't read pcm file.

I will email you schematics

kainedogg

iTrader: (23)

Shot you a PM brother, and thanks.

kainedogg

iTrader: (23)

Any more ideas. Swapping parts isn't really diagnosing but I have an extra unlocked stock ecm, I am going to throw in with a another maf and map and see if it makes a difference. Woudl be great if it was just an incorrectly pinned connector.

psiconversion

iTrader: (5)

Did you confirm the pinout was correct? Or do you still need it?

Jon
PSI

kainedogg

iTrader: (23)

Still need the pinout Jon. Off tomorrow so hopefully I can make some progress.

psiconversion

iTrader: (5)

Pin A on MAF goes to Position 57 on Red PCM Connector
Pin B on MAF goes to Position 25 on Red PCM Connector
Pin C on MAF is ground
Pin D on MAF is Key ON 12-Volts
Pin E on MAF goes to Position 31 on Red PCM Connector


Assuming this is a 5 PIN pre 2007 Truck MAF sensor (if you have a part number we could confirm). Remember the newer sensors had multiple pinouts.

Jon
PSI

kainedogg

iTrader: (23)

The MAF itself is a 100mm after market unit, with 3 pins and attached to a 3 to 5 pin adapter then to harness.

psiconversion

iTrader: (5)

Who made the aftermarket MAF? pn?

Jon
PSI

kainedogg

iTrader: (23)

I will check on that Jon, but I did swap it out with a factor MAF and still had the same problem. Even used a few MAP sensors as well to see if they could be the issue. Checking those pins will be a major pain, tracking them back to the ecm...lol. If I can't get this resolved I am half tempted to send you my ecm and have you do a speed denssity tune and call it a day.

97camaroguy

iTrader: (5)

Any chance that the 6.0's ecu was speed density tuned prior to you buying it? Have you tried to swap out ecus?

kainedogg

iTrader: (23)

I had the ecu specifically programmed for my setup (stock tune), i.e 6.0, 100mm maf, TH350 with 8k pulse fromhte Dakota Digital sender.

I do have another ecm that I will try tomorrow.

kainedogg

iTrader: (23)

Hey Jon, it' a generic one I bought off the Corvette forum last year.