Compression Ignition Addict
Join Date: Jul 2010
Location: Falls Chruch
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Just got through this process. There are TS Chips (6 position) with many different vendors supplying their own tune. Bruce's suggestions are solid, reputable tuners of the TS Chips.
A second option is DP tuner which is relatively similar, but use a different chip.
I originally purchased a TS Chip from PHP which was a big mistake. I cannot recommend PHP to anyone. Their price was the least expensive but the customer service is atrocious. Instead, i gave DP a try with VERY positive results.
The MOST important thing in purchasing a tuner (for me) is customer service. I want to know how responsive the vendor is to my inquiries, reburns, and returns (if required). Do your research, pick a vendor and contact them via the phone. Ask the vendor a couple questions. You'll find most will not answer. Pick from those who do respond quickly and in detail.
Nonconformist. Functionality over bling.
My three rules for 7.3l troubleshooting: 1) Replace CPS and keep a spare. 2) Replace FPR and know your fuel pressure. 3) Hook it to a scanner and check for codes.