what code scanner to buy

[vaughn54]

I am going to buy a code scanner and would like to know which is best to buy.
I am looking at one on Northerntool.com. It is Action CP 9125, AutoXRAY OBDII for $79.00.

Looking at 2 different ones at Harbor Freight, ONe is Cen-tech OBDII/Code Scanner with text display for $89.99. Displays data in plain english, no looking up codes.
2nd one is Cen-Tech with CD software with 7000 trouble codes for $39.99

I have a 1998 Chevy G3500 Van with a 6.5 TD
Fed up with dealers who wont tell you the truth. Just replacement monkeys.
It is out of warranty now and I can't afford their prices. I want to install a remote PMD on it first. It should be fun on a van. Can't get to anything. Even with the dog box off it is tight. Thanks Vaughn

[JohnC]

None of the low priced, off the shelf scanners will do everything you need, like TDC offset. Search these forums as it's been discussed before; there are a couple of PC programs that fit the bill. I don't recall the names, though.

[DA BIG ONE]

CarCode has nice program that lets your set timing/relearn along with other setting adjustments. This program has real time data monitoring that gives some interesting information like to mpg, fuel rate nice for the $$$.