any input would be great... p1210

[TIMALEC]

ONLY GETTING THE P1210 CODE: i believe it's, injector control pressure at expected level

2000 psd. superchip. intake. exhaust. 153xxx miles.

I've replaced the ICP sensor and it is working properly. The truck starts fine then it lugs and seems very underpowered when it's cold. Even when it's hot it doesn't like to start anymore.
Today...i've checked fuses. checked icp. changed oil/filter. changed fuel filter. I'm stumped so i'll let all you guys battle out the diagnosis.

Thx!

[alabamafrog]

Could it be an IPR problem?

[WEWILLE]

Definitly a ipr problem, can you read ipr values on your scanner

[mschn99]

replace the o rings on the IPR valve...if that doesnt fix it just replace the whole valve......

if the o rings are bad you should be able to see the damage on them when you remove the valve...

[TIMALEC]

I took apart the IPR valve and did the rebuild kit. Nothing has changed w/ the start up though. I know it's hard to diagnose things over the forums w/o knowing everything about my truck. With that said...i'm looking for any ideas you guys may have, any at all.

Problems:
-doesn't want to idle at cold start. have to give it throttle.
-hardly any power when cold (50-60 degrees out)
-continuously throws the P1210 DTC

Once warm, engine starts and runs fine. But still laking low end power.

Thx in advance

[TIMALEC]

I need the help...i don't like taking my trucks to the dealers and i like working on it myself...but i could really use your guys' help.

[alabamafrog]

Maybe do a good check of the glow plug system and try to get a scanner to watch all the different sensors. Fuel pressure checks, exhaust back pressure system checks, etc
Still sounds like a high pressure oil problem, I think I would focus there first.
What kinda oil you got in it, been changed lately? Don't have any thick additives like Lucas or STP in it do you?

[TIMALEC]

I changed the oil 'bout ~600 miles ago. i used 10-40 this time (i think) and i don't have any additives. I only have a superchip 40/60/80 chip and i've put it back to stock and the other setting but nothing changes.

I'm up for any more ideas.

oh and the truck has great top end but, the bottom end power is just not there anymore

[alabamafrog]

Oil is VERY important because it fires the injectors a a very high pressure. type of oil and weight can make a big difference and it needs to be Diesel rated oil.

If you really want to be able to troubleshoot and have some really hot programs too then sell the SCMT and buy a Diablo sport Predator, probably be close to an even trade if your any good with eBay.

[TIMALEC]

well, i think i may have fixed it. I was bored and frustrated so...Just for the hell of it...i had an old ICP sensor laying around and figured i'd give it a shot. I have my bottom end power and black smoke back. And i'm not getting anymore codes!!! The good thing about all of this is i learned a few new things about the PSD and i have some new parts on it and i didn't spend a whole lot of money. Thanks for everybody's input.