4.3 V6 VIN W help

chevy2_66 · Post by **chevy2_66** » Wed Jul 13, 2011 4:08 am

I have a 94 GMC Sonoma with the 4.3 VIN W CMFI motor. I have been playing with trying to get TunerPro RT V5 to read live data but have not had much luck. I started with V4 and used the A178 definition file, but i could never get the data stream to start, I switched to V5, imported the definition which took it from a ADS to a ADX. I was then getting live data but it was all junk, only half the sensors were reading and the ones that were did not make sense. Any one have any ideas where i'm going wrong, or have another definition file i could try?

Thanks

Wapps · Post by **Wapps** » Mon Dec 19, 2011 10:47 am

Did you ever figure this out? I have the same engine with the W code and was considering getting the Tuner Pro/RT but if it dosn't work i won't.

chevy2_66 · Post by **chevy2_66** » Mon Dec 19, 2011 10:48 am

No never had any luck

Wapps · Post by **Wapps** » Mon Dec 19, 2011 11:10 am

Did you ever try any other programs or scanners that you had any success with? I need to see what is happening with the sensors to try and solve a problem. My engine misses at idle but only when it hits 195. Up till that point it's as smooth as glass. I suspect when it goes into closed loop and is reading all the sensors it starts missing. I have changed almost evey part you can think of including a new CPI spider but can't solve it.

chevy2_66 · Post by **chevy2_66** » Mon Dec 19, 2011 11:14 am

No i've tried several different programs, never had any luck, and all the support i have ever gotten was "gunna have to play with it".