Hey, so did you get the tmap sensor going? Im trying to find out if I can use the cobalt one to monitor the iat2, but I dunno if its tunable with hptuners. Which one did the kit come with?

 

You can control timing via hpt with iats. When you use the following setup you lose iat1s, but iat2s is all that really matters for anyone boosting. The kit comes with a 2bar map sensor only(not tmap) sorry I looked for it, but could not find it.

I would assume the LSJ tmap sensor will work for us, but I got a 2.5 bar because I wasn't sure how much boost I was going to be pushing so I got these parts:

http://www.bmotorsports.com/shop/pro...oducts_id/1720

http://www.bmotorsports.com/shop/pro...oducts_id/1626

Then I spliced them into the system so I can read IAT2's with this diagram:

 

Yup thats the same wiring and setup I was going to go with. It mounts ok in the manifold beside the sc?
So hpt has an option for using that 2.5 bar map sensor? I am getting a local guy with hpt to tune it, so I cant look at the file myself. I have 2.2 engine, but I would guess the tuning options are similar.
So to read the iat2 you use an external guage or interceptor?

 

Yup it mounts in the stock location. In hpt we do have access to the map calibration table so its no problem. Currently I am not using an external gauge for that, just hpt when I log. I am just using the AEM uego wideband and a boost gauge right now. I do want another more comprehensive gauge though. Any you have looked into or recommend?

 

I would like to wire it up to the analog input of an aeroforce interceptor as they provide so much additional info, reset codes etc and are widely used.
It would require setting up according to the sensor output voltage. If you are able to log iat2 now using hpt, then measuring the voltage and cross-referencing with temperature values could give the required setting for the interceptor guage.
Ive posted on other forums, but I dont know if anyone has done that yet.

 

The Cobalt 2.5 bar sensor is fine for this. Just need to "transfer" the IAT signal from the MAF to the 2.5 MAP. That diagram above is not correct.

This should be done to keep the motor safe, period.

 

Thank you for that Joe. Ill look up the diagram for the MAF wires.
Good to see ya posting again, hope all is well with you.

 

http://www.cobaltss.net/forums/2-2l-...wiring-269616/

 

Supercharged is cool, but turbo gets better gas mileage. And we will still beat that ass

 

? Not sure where you're going with this, but I wouldn't even worry about a stock SS. And depending on mods, fuel economy is mostly the same. When I had stock compression and a 3.1 I was still getting 31mpg hwy. Lets turn this into a turbo is better thread.