CRANK NO start!!
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Joined: Jan 2011
Posts: 18,849
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From: Puget Sound
Good job on solving it and reporting back.
As I was reading the exchange, these were the thoughts in my head:
The ICP bounces around because the engine crank speed effects the pumping action of the HPOP, the IPR is very slow to react to situations, and the OBDII port is even slower to report those situations to your scan tool. "Too much" ICP and IPR is OK when cranking.
You checked all the "testable" elements needed to start, except one. You forgot to look for the Fuel Injector Pulse Width. If you had checked that, you would only see the Sync Signal of 0.6 ms through the whole cranking cycle. With all other elements meeting minimums, the CPS would have popped as a suspect... but the 150 RPM reading confuses me.
As I was reading the exchange, these were the thoughts in my head:
The ICP bounces around because the engine crank speed effects the pumping action of the HPOP, the IPR is very slow to react to situations, and the OBDII port is even slower to report those situations to your scan tool. "Too much" ICP and IPR is OK when cranking.
You checked all the "testable" elements needed to start, except one. You forgot to look for the Fuel Injector Pulse Width. If you had checked that, you would only see the Sync Signal of 0.6 ms through the whole cranking cycle. With all other elements meeting minimums, the CPS would have popped as a suspect... but the 150 RPM reading confuses me.
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Joined: Dec 2013
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yup she runs good guys. I'm gonna change the injector here in a minute and she should run smooth.
i did check the IPW and it was .8 cranking and sometimes 1.6
i have a friend who preaches these trucks.
he stopped by and had a cam sensor in his glove box lol
thanks guys!!
i did check the IPW and it was .8 cranking and sometimes 1.6
i have a friend who preaches these trucks.
he stopped by and had a cam sensor in his glove box lol
thanks guys!!
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
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1994.5 - 1997 7.3L Power Stroke Diesel
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