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Engine Specific Info and Questions => Non VW Group Diesel => Topic started by: catlin_cava on August 07, 2009, 12:41:19 pm

Title: Chevy 6.5 CEL 2 codes
Post by: catlin_cava on August 07, 2009, 12:41:19 pm

Got  2 codes, engine spattering and lack of power. Codes are p0271 and p0370.
P0251 injection pump fuel metering control "A"malfunction
P0370 TiMing reference High resolution signal "A" malfunction

What does it mean? This truck is leaving tomorrow for Barrie Ontario then to Florida

Title: Re: Chevy 6.5 CEL 2 codes
Post by: burn_your_money on August 13, 2009, 04:54:22 pm

I'm not an expert on these 6.5s but I think both codes are referring to the optical sensor in the pump. If that goes you need a new pump. If it's running like crap unplug the optical sensor. It's the 6 pin connector on the very top of the pump. If it runs better then you need a pump.

Or it could be crappy wiring, that happens a fair bit too. Again, usually at the optical sensor connection.

Title: Re: Chevy 6.5 CEL 2 codes
Post by: catlin_cava on August 14, 2009, 09:53:31 am

Well it was in Barrie On. getting repaired, would that cause the truck to get HORRIBLE mileage lol, 450 km per tank?

Title: Re: Chevy 6.5 CEL 2 codes
Post by: catlin_cava on August 15, 2009, 07:32:48 pm

faulty Sending unit in the tank, it was sucking in air

Title: Re: Chevy 6.5 CEL 2 codes
Post by: burn_your_money on August 19, 2009, 05:39:03 pm

450/tank? OUCH.

Thanks for the update on the problem

Title: Re: Chevy 6.5 CEL 2 codes
Post by: catlin_cava on August 19, 2009, 05:41:43 pm

yea lol. It finally quit in Barrie lol