Just getting around to buttoning up this car before I take it to the dyno. It's your cookie cutter vitara single jingle build.

Car was running fine on stock P28 with stock injectors and stock map sensor.

I put in a xencron basemap to match my setup, 600cc injectors and a GM 3 bar. Car cranks up and runs but not well, if I blip the throttle it stumbles and falls on its face, even cuts off sometimes.

Injectors are firing fine so I tested the GM 3 bar, it's getting a good 5v reference but the output voltage is all over the place so I suspect that this is the problem.

Please look the video below and let me know what you think:

https://www.youtube.com/watch?v=KAlX...ature=youtu.be

Sorry for the sniffling, I have a bad cold.

 

Contact Xenocron and ensure that the basemap is specific for a GM 3bar map sensor and not one from another company.

 

Does the output voltage really vary from a oem gm 3bar versus aftermarket?

 

Not necessarily the output voltage itself, but the stability and consistency of the village reading on OEM is much nicer from my experience.

 

I can't view the video, says it's set to private

 

Oops, please try this link:

 

what in the hell was that? lol. I've never seen voltage do that before, especially considering it's a 0-5v sensor. I actually didn't expect to see anything like that and don't quite know what to say at the moment. I'll check back if I think of anything