Need help w AE!!
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Cargo Master
Joined: Jan 2009
Posts: 2,800
Likes: 31
From: OKC, OK
Need help w AE!!
My buddys truck won't start. I did the 50cent mod and thought that would fix it but it didn't. It will crank but not fire. I am trying to use my AE but this is my first time and I can't seem to find any of the engine sensors.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Sounds like you unplugged the ICP sensor to see if it would start that way? Go ahead and clear the codes, switch over to the live data tab with the key still on and in your drop down boxes, select ICP psi, ICP duty %, battery voltage, engine rpm, injector pulse width, and anything else that sounds interesting. Then crank the truck and watch the numbers to see what the numbers say.
Need 500 psi min to start, duty cycle should continue to climb up in the 60% range or so depending on model year if the pressure doesn't build.
Need 500 psi min to start, duty cycle should continue to climb up in the 60% range or so depending on model year if the pressure doesn't build.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Might be a stuck IPR. Try unplugging the ICP sensor and crank again. Sometimes that will unstick it. Before you do, check the oil level in the HPOP reservoir and make sure it's within an inch or so from the top. Also make sure the engine oil is full.
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Cargo Master
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From: OKC, OK
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Cargo Master
Joined: May 2010
Posts: 3,047
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From: Snohomish, WA
Yes, ICP will climb pretty quick when cranking, and as soon as it starts you should see about 800-900 psi, then it will drop to about 500 psi after a few minutes of idle.
Did it start yet?
Did it start yet?
Cargo Master
Joined: May 2010
Posts: 3,047
Likes: 10
From: Snohomish, WA
You can try disconnecting the IPR and reconnecting it. Otherwise I would look at removing the solenoid and possibly removing the IPR and cleaning it.
Is the reservoir staying full? Anyway you can verify low pressure oil pressure?
Is the reservoir staying full? Anyway you can verify low pressure oil pressure?