99 yukon 5.7 vortec misfire HELP

[SunlitComet]

nope. It does not say misfire history. and it a a cheap one at that. spend money on high end autoxray that can read proprietary gm data or something similar.
This would be a great starter for all obs users here. http://www.autoxray.com/product_detail.php?pid=94. Or an old snap-on mt2500with the right software.

 

[lifted_yukon22]

Ok when I get paid I'm going to order a autoxray and then post the results. There not that expensive there's used ones kn ebay in mint condition for $110.

 

[SunlitComet]

just make sure all the parts are included to use its functionality.

 

[lifted_yukon22]

Ok the snap on one what does it have to have to use it

---------- Post added at 07:53 PM ---------- Previous post was at 07:13 PM ----------

Is there any other scanners that you know about that I can look for that are pretty good also?

 

[SunlitComet]

Snap-on is typically a scanner, interface cable and a personality key card which would plug in to the cable somewhere. OTC makes good scanners but a scanner that can read proprietary gm data can usually see misfire history.

 

[lifted_yukon22]

Ok I did another fuel pressure test while waiting to get a good scan tool. It pumped about a 32 Oz gatorade bottle in about 25 or so seconds. While testing volume the pressure dropped to around 25 to 28 psi which was expected. When you hit the throttle and hold it at a steady 2500 to 3000 rpm it goes to 60 to 64 psi and slowly drops back to around 50 psi is this normal?

 

[SunlitComet]

yes it is nominal.

 

[lifted_yukon22]

Ok the snap on mtg2500 is the same as the mt2500 but with graphing right? I can get one with all the adapters and gm primary and troubleshooting for under 200

 

[SunlitComet]

Sounds like a steal grab it before someone else does. It is an upgraded model.

 

[ccapehartusarmyINF.(ret)]

i used both snap on models you referred to in school extensively and i was gonna buy one when i graduated because we got 1000 dollar snap on voucher and they wanted like 1200 for the mt2500 i think it sucked becuase of the stipulations of the voucher i could only apply it to certain snap on stuff