'93 Deville showing E41 code

1993 GMC
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SGT1205
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  • 6 POSTS
Code 41 showing (Cam reference, signal)....what's up with that and what's the solution. Just replaced distributor due to broken coil pick-up.

Thanks
Feb 2, 2006 at 2:04 PM
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CHEVY350GUY
  • ✓Experienced Mechanic
  • 109 POSTS
when you clear the code how long till it comes back
Feb 3, 2006 at 1:13 AM
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SGT1205
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I'm a cop....I love to give tickets ;-)


The CIL comes back on immediately.....at times it will go off for a brief few seconds, but comes back on quickly.
Feb 3, 2006 at 7:51 AM
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CHEVY350GUY
  • ✓Experienced Mechanic
  • 109 POSTS
i would test the cam sensor. the wave form being sent to the ecu might be weak. this wave form is the signal the ecu detects.

honestly officer the throttle stuck wide open :lol:
Feb 3, 2006 at 1:09 PM
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SGT1205
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Likely story.....I've heard it all before............license and registration please! :roll:
Feb 3, 2006 at 2:40 PM
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Suggested Repair

Test the cam sensor; the waveform signal sent to the ECU may be weak.

Conversation Summary

A 1993 Cadillac Deville is showing code 41 (cam reference signal) after the distributor was replaced for a broken coil pickup. The check engine light returns immediately after the code is cleared, sometimes going out only briefly. The expert recommends testing the cam sensor because the waveform signal to the ECU may be weak.

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