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service engine light soon

  1. Diesel Diagnostics
    i have a 2001 f350 7.3L diesel. check engine light stays on, at idle but when revved the engine up the light goes out, but when it goes back to idle the light comes back on. the engine runs smoothly at idle and when revved up. i have put a new idm, pcm, all new injectors, glow plugs and put 2...
  2. 99-03 7.3L General Discussion
    Good morning. I have a 2000 f-250, extended cab lb, 2wd with the 7.3 psd. I went to start it after work this morning. it started hard, but it has the last two years I have owned it. the service engine soon light came on. I stopped by auto zone and got a P1670 code. the truck ran like normal on...
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