1994 dodge Ram 1500, check engine light
85

Asked by Leaston Apr 26, 2013 at 10:38 AM about the 1994 Dodge RAM 1500 Laramie SLT LB 4WD

Question type: Maintenance & Repair

Spitting and
spuddering at First
but then. Continued
to Drive and
Everything seemed
Fine. Im Still worried
about the light

5 Answers
85

Leaston answered 11 years ago

Do i need to buy a code reader? And if so which reader?

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110

Peay answered 10 years ago

I am having problems with my 94 ram 1500. the check engine light is on and the codes that flash are 12, 21. It idles rough and didn't think that the O2 sensor had much to do with it and found that a common problem is the iac sensor. I replaced that and it still idles rough. now when i check the codes it flashes 21 twice??? any recommendations?

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310,565

Gene answered 2 years ago

Get a decent scanner, one that can do both OBD1 and OBD2 with live data, even though the live data will be severely limited on OBD1 it's better than flash outs. Flash out codes can be misleading or even wrong.

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