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I know somebody has an answer for me
ONLY GETTING THE P1210 CODE: i believe it's, injector control pressure at expected level
2000 psd. superchip. intake. exhaust. 153xxx miles.
-doesn't want to idle at cold start. have to give it throttle to keep it running.
-hardly any power when cold (50-60 degrees out)
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.
Today...i've checked fuses. checked icp. changed oil/filter. changed fuel filter.
The IPR vavle has also been checked.
I'm stumped so i'll let all you guys battle out the diagnosis.