Hard cold start

fbilly420 · Mar 4, 2015

I am having a strange issue with a friends truck (100% stock 2002 195K). It is hard to start when cold, it turns over slow but if you keep cranking it will start. After hard start get P1211 code but it is high icp. Cold start IPR duty cycle 5% and icp is 1500 psi @ idle. Not sure where to go with high icp. Brand new icp sensor and pigtail. Same result with old icp that was replaced because leaking. Any pointers would be great

Arisley · Mar 4, 2015

fbilly420 said:
I am having a strange issue with a friends truck (100% stock 2002 195K). It is hard to start when cold, it turns over slow but if you keep cranking it will start. After hard start get P1211 code but it is high icp. Cold start IPR duty cycle 5% and icp is 1500 psi @ idle. Not sure where to go with high icp. Brand new icp sensor and pigtail. Same result with old icp that was replaced because leaking. Any pointers would be great

Check the batteries, battery cables and grounds, and the starter.

fbilly420 · Mar 5, 2015

Tested batteries and they checked out ok. Replaced starter and POS battery cables as they looked to be in rough shape. Turns over much faster now. Still have to crank for 10 - 15 sec before it will start. Still getting P1211 on start up when oil is cold IPR 5% DC and ICP in 2K-3K range at idle.

Booney · Mar 13, 2015

I was having hard starts, switched to 5w40 synthetic and haven't had issues since. Just a suggestion

dadada · Mar 16, 2015

5w40 synthetic helped mine out too. I also changed out my trs too.

co04cobra · Mar 16, 2015

fbilly420 said:
Tested batteries and they checked out ok. Replaced starter and POS battery cables as they looked to be in rough shape. Turns over much faster now. Still have to crank for 10 - 15 sec before it will start. Still getting P1211 on start up when oil is cold IPR 5% DC and ICP in 2K-3K range at idle.

What are you scanning with? 5% DC and 2000-3000psi isn't even possible at idle. Is the scanner in KPA?

David N · Mar 16, 2015

Ive had bad batteries check good. Put new batteries in, and started like a wet dream. How old are your batteries?

ZombiePopper · Mar 17, 2015

Id throw a DVM on your GPR also

wildbill963258 · Mar 17, 2015

Did you test your glow plug relay? I used to have the same exact issue until I replaced my starter and my glow plug relay now my truck fires right up and the only evidence left of bad injectors is the blue raw fuel smelling smoke and a slight bouncing idle until it's warm