Will this work for tuning my air/flow ratio. Tunning the over all profamance in my throttle response, air flow and spark to my exhaust. I have veepeek ob2 with torque running my live data, but i have noticed my fuel trim pressure to be irregular, my o2 sensors are peeking and having long drags top side which show misfire and my downstream is running 90% match with my upstream. But no check engine codes nothing but my vsc and abs lights on due to my abs mod. Not wprking right so it takes my tcs offline. I put a cold air intake on and bought 2.5 inch exhaust cut and welded from cats to an x pipe and flows out to 2 cherrybomb glasspacks and 3 inch tips. I know i changed minor stuff but its been hard to go into reverse idle drops to 200 or shuts off the engine i have to rev to 2k slap in reverse and hit the gas without braking. Sucks. Then park i set ny idle to 900 and then once in drive it will drop to 600 but my engine load shows 18% then spikes to 40% then drops to 21%. So i wanted to see what my options are, take in mind I am rolling on a very tight budget and doing everything myself.

 

Assuming you mean the HP Tuners MPVI 3, no.

The cheapest thing to do is systematically check all the stock parts for proper operation and not modify anything until you have a proper working car to start from.

 

Yeah sorry about the mix up, but I have changed the injectors changed the spark plugs, tracked down vaccum leaks. I still have one behind engine under the intake believe its called the vsci system. I will be order new vaccum hoses and replacing the switch under the intake. Next thing I want to look into would be my throttle body, but just trying to get some good advise. Thank you for letting me know on the mpvi 3. I wanted to get more tuning and some changes out of my stock ecu. I know the vvti system makes it really hard to tune but I just want to get my fuel air ratio down. I smell rich gas on start up and for some reason the fuel line you can open the line up and would be no pressure or fuel at intake side.

 

Have u checked the fuel pressure? I know it can be a little bit of work on these cars, but there are ways and a weak fuel pump, or low voltage to the pump or a bad fuel pressure regulator could explain your symptoms

 

yeah the fuel pump was changed last year. I put a highflow pump in with a new filter and strainer, but once i cleaned the throttlebody the carbon build up the car doesnt die in reverse anymore, but I still have the smell of striaght gas on first start up. Seems to be running rich so I wanted to adjust the f/a ratio from 1k to 3k because it lags on throttle at those rpms but gets a boost that throws your head back at 4k, if your not paying attention just kinda throws you off a bit.