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mikesmobile

Mar 18, 2008 6:48 PM

DTC Error 44 ODBI

I have a 1989 GMC Suburban R2500 7.4/454. I am getting a DTC error code 44 (lean exhaust).

Has anyone seen this issue before? Any suggestions?

TransAm Man

Mar 18, 2008 8:46 PM

RE: DTC Error 44 ODBI

That could be a few things. Check your EGR valve and the radiator temp sensor

mikesmobile

Apr 16, 2008 7:35 PM

RE: DTC Error 44 ODBI

I took my suburban into the dealership for servicing. After performing a variety of tests, the culprit was my fuel pump (which is in the gas tank). I put up a real quick blog post about this. You can read it here.

kerpal

Apr 17, 2008 10:15 PM

RE: DTC Error 44 ODBI

Quote:

ORIGINAL: mikesmobile

I have a 1989 GMC Suburban R2500 7.4/454. I am getting a DTC error code 44 (lean exhaust truck part).

Has anyone seen this issue before? Any suggestions?

Bro,O got the same problem as you.. but what I did was I brought it to the dealer to have it checked. I suggest you do the same

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