Compression Ignition Addict
Join Date: Jul 2010
Location: Falls Chruch
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gauges are an interesting dilemma. Isspro is probably your best bet as most of us have them. After purchasing a AutoEnginuity, i find that most of the gauges are really for show as i can check via the laptop. If i could do it again, I'd look at Fuel pressure, EGT temp and (boost OR transmission). In that order by the way...
Boost and Transmission temps are available in the AE software and I only pay attention when i have an issue. Fuel pressure and EGTs are not available via the PCM and by far more important to monitor.
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.