IPRDC low
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More Turbo
Joined: Nov 2012
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From: Chariton, IA
IPRDC low
Came up on a kid sitting along side of the road today. Said he didn't have enough power to put the hill had a stock trailer and 2 horses in it. So I hooked up my Infinity and it started right up and everything looked good but the IPRDC was only about 7% with icp about 480. What would cause that?
Ran the KOER and had a exhaust pressure circuit high but the ebpv was open. Cylinder contribution showed 2 and 6 had a fault. And I forgot to run a buzz test. Was on my way to work and he already had someone coming g to get him.
He replaced his injectors with used ones that had a 50k warenty but only torqued them to 100. I told him to check if one had come loose and to torque them to 130in/lbs and to check the UVCH because it had a miss but no tick.
Anyway I was wondering about the low IPRD. I'll probably never see him again but may run into that problem sometime down the road.
Ran the KOER and had a exhaust pressure circuit high but the ebpv was open. Cylinder contribution showed 2 and 6 had a fault. And I forgot to run a buzz test. Was on my way to work and he already had someone coming g to get him.
He replaced his injectors with used ones that had a 50k warenty but only torqued them to 100. I told him to check if one had come loose and to torque them to 130in/lbs and to check the UVCH because it had a miss but no tick.
Anyway I was wondering about the low IPRD. I'll probably never see him again but may run into that problem sometime down the road.
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More Turbo
Joined: Nov 2012
Posts: 727
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From: Chariton, IA
Thanks.
Hotshot
Joined: Jan 2011
Posts: 18,849
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From: Puget Sound
As I have been warned by experts, we are better off sticking with 120 in/lbs unless a problem arises. I have been very unlucky in this regard, so I have been forced to use 130 in/lbs... but I may be an anomaly.
Low IPR usually indicates an ICP sensor going out. I'd look hard at the ICP readings compared to IPR during a WOT test to see if it makes sense - IPR should peak at about 40% on a stock truck.
Low IPR usually indicates an ICP sensor going out. I'd look hard at the ICP readings compared to IPR during a WOT test to see if it makes sense - IPR should peak at about 40% on a stock truck.
Laughing Gas
Joined: Oct 2012
Posts: 872
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From: Jasper, Mn
Chris, my 7.3 is one of those oddballs sitting at good ICP and low IPR DC. Even in stock mode though mine will pull a hill with ~14K behind it in 5th (direct drive) without much of a problem at all.
It would be interesting to see what is going on with that guys truck, but like you said, you'll probably never see him again.
Baatzy
It would be interesting to see what is going on with that guys truck, but like you said, you'll probably never see him again.
Baatzy
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