Throwing a pO174 code. I've checked for vacuum leaks using old carb cleaner trick. Any suggestions to look further since i haven't been able to locate a leak? I'm assuming that if it were intake, I'd be smelling coolant or overheating? The motor has no miss but does hesitate completely and then accelerate when taking off from a complete stop at a red light etc. Thanks...I'm puzzled

 

Look at the freeze frame data. If the code set at low throttle/low rpm it is most likely a vacuum leak. If it set at higher rpm and heavy throttle it is most likely a fuel supply issue.

 

Thank you. Do I need to clear the code, run the truck in live data mode, and read information then or is that information stored in my scanner? I've never used the live data function on it. Also when i got the vehicle over 2 years ago i had misfires on 5 6 and cyl 7. I changed the COPs and plugs and noticed there was water/liquid in plug wells. Would that indicate leaks around intake gasket on bank 2? It has never overheated on me and coolant reservoir stays at proper level

 

The freeze frame data is not live data. It is a snap shot of live data when the code was set. When you clear codes it also clears the freeze frame data.

 

Somebody point me to a faq. What's the "freeze frame data" and how would I access it?

 

How to access Live data depends on the Scanner used.
Freeze frame is a stop of Data flow shown on the Scanner screen when the fault is triggered by your preset request.
Some Scanners can be set to see the data just before the trigger, at the time of trigger or just after.
This is able to be done because the Scanner has some memory to store a small amount of live data and displays the 'time point' you requested.
Good luck.

 

Thanks. I thought it might be something the ECM could provide with a proper command.