Engine/Transmission (1998.5 - 2002) Check Engine light (codes: 236 & 237)

[Deezal Man]

History:

Truck popped two engine codes about 5K miles ago, Both indicating my injector pump may have seen its better days. Unfortunately I can't remember the 2 codes. Thought it might be the Comp, so I replaced with a new one. (box only, not harness) Then all seemed ok for a while.



Recently, its been popping the 236 & 237 codes. First advice has been to disconnect the PE Comp to completely eliminate as a possible failure.



Question is, do either of these codes have any ties to the injector pump? My reason for asking is that I currently have immediate availability to a new "hotrod" VP44. . 2nd, my truck is a 98. 5. . bla bla bla



By the same token. . its not like I have that kind of cash waiting to be spend on an injector pump... but I don't feel like being towed, or breaking down on the road either.



Thoughts?

 

[lcoblentz]

0236 and 0237 are both MAP sensor codes (one for voltage high, and one for voltage low). If disconnecting your box does not get rid of the problem, I would guess you need to replace the MAP sensor.

 

[Mad Bomber]

Map??

The 236 & 237 were what my map sensor was doing when it went TU on me. Replaced it and all was good. BTW the other thing it was doing was smoking like a frieght train with box on or off.

 

[Deezal Man]

Makes sense

The smoke thing makes sense... Normally it doesn't create much smoke on level 1. But it was smoking at times like it was set at +3. I disconnected the Comp last night and tried to re-set the check engine light... but it wouldn't go away... so I think the MAP is toast. Hence it would appear ANOTHER sensor has bitten the dust on this truck. . Oh well, I guess I can't complain. .



Thanks,

MLS

 

[Mad Bomber]

Map??

Do a search on the map sensor and I even put in the cummins PN# in. DON'T GET THE DEALER FLASH !!!!!!!!!!!!