I own a 1993 D350 and had charging issues so I rewired my truck for an external alternator. Now when the truck is running I have a Check Engine Light. I checked the codes and the ECM is faulting the alternator as not cycling properly. I was wondering can I just splice the two wires from the original install together and will this get rid of the light? Or should I just pull the bulb? I would really like to find a way to properly correct this issue and still have the check engine light working properly. Any suggestions?
John
Check engine Light
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Check engine Light
by rocktoy » Tue May 12, 2009 10:57 am
93 D350, 4 in Rip rook, POD's, 16cm housing, Tach, Pyro & boost gages, NV4500 conversion, Pac brake, KDP Neutered.
- rocktoy
- fuel pin?
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by CAJUN 93 » Wed May 13, 2009 6:03 am
mine did the same thing. basically the ecm is not seeing voltage changes when the internal regulator sends the signal (it still looks for this even when the internal regulator has died) and assumes that the internal regulator is inop. oddly, now since the leece-neville conversion its gone. the mopar regulators (both internal and external) are subject to lots of small voltage swings in order to maintain proper charging. the leece maintains a slower, more steady voltage curve that apparently doesn't freak out the pcm. all this was a really long way of telling you that you may just have to live with the cel.
daryl
daryl
93 d350 5spd 3.54-bhaf,stg iv,banks intercooler,bosch185,16cm,pacbrake,4" straight exh,pump mods,366 spring,leece-neville alt.
hers- 93 d250 auto 3.54- pump mods only
ours- 93 w350 dually, auto, 3.54. stock for now
parts 93 d350 auto, 92 d250 auto.
hers- 93 d250 auto 3.54- pump mods only
ours- 93 w350 dually, auto, 3.54. stock for now
parts 93 d350 auto, 92 d250 auto.
-
CAJUN 93 - 14mm rotor
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