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Does your "Service Engine Soon" light come on when you first turn the key to the run position? Wondering if the bulb is burned out...
I just purchased the GMTD Scan software and OBD1 to USB cable for my 1995. It's pretty sweet. I finally got my timing and TDCO set, and was able to read and clear codes. I can even manually illuminate the SES light to make sure it works.
Casey
1995 K1500 Tahoe 2 door, 6.5LTD, 4L80E, NP241, 3.42's, 285/75R16 BFG K02's; 1997 506 block; Kennedy OPS harness, gauges, Quick Heat plugs, and TD-Max chip; Dtech FSD on FSD Cooler; vacuum pump deleted, HX35 turbo, Turbo Master, 3.5" Kennedy exhaust, F code intake; dual t/stats, HO water pump, Champion radiator; Racor fuel filter
Enthusiast
SES light does work, so bulb is OK. But, coincidentally, I just downloaded the basic version of the GMTD software myself. Now waiting on a cable to be delivered from a separate vendor. Hope it works! Thanks for the suggestion.
Black 95 6.5TD, 929 block, 173k miles, 65k on IP, 48k miles on self-rebuilt engine done in '09, 6 L&S Full-torque inserts in outer main crank holes, Clearwater heads, Fluidamper, rebuilt NV4500, 3" downpipe, 4" exhaust, no cat, dual T-stats, 9 blade fan, spin-on 180 degree clutch, Heath hi-flow water pump and turbomaster, PMD relocated, OPS relay mod, Heath PROM upgrade, and Kennedy headlight harness upgrade soon. Now use semi-syn Lucas 2-cycle oil every fill-up which greatly reduces the frequency of DTC 35-36 codes the PCM/ECM throws.
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