Posted April 26, 20196 yr Good morning all, First time on this forum... I get a P1291 OBD readout from my '99 Cummins 24V. Where can I find out what that readout means ??!
April 26, 20196 yr Staff You will find them in the articles section/ 24 valve 2ed generation/ engine/ OBDII error codes P1291, No temp rise seen from grid heaters. Do you have your grid heaters disconnected?
April 26, 20196 yr Author I just found the article re: OBD readouts... OK... now I know at least where to start diagnosing... Thanks !
Good morning all,
First time on this forum...
I get a P1291 OBD readout from my '99 Cummins 24V.
Where can I find out what that readout means ??!