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P16A1 and hard start

500 views 8 replies 3 participants last post by  Ridin Dirty  
#1 ·
2017 Colorado today suddenly has a longer than usual crank time but then starts right up when it decides to. P16A1 code is popping but no engine light. Anyone else encountered this yet? Runs fine, cleaned MAF just in case no luck. Code indicates TPS sensor but wanted to see if anyone else has had this before I throw one at it.
 
#7 ·
Swapped out the throttle pedal thought that could be it. Started perfect twice in a row. Drove it to town had lunch come out, hard start again. Anyone have any idea where I should turn? I really think the code is just always there because the TB isn't even plugged in because of the delete so I don't think it's that. Has anyone had these longer crank and hard start issues with no codes?
 
#9 ·
Interesting problem. Good luck with it. I wish I had an answer but maybe something can relate...
I bought a deleted truck and didn't like the tune so I replaced it with one from a tuner I had previously used. It immediately threw a P16A1 code. It turns out the throttle body was unplugged for the previous tune. I plugged it back in and cleared the code with no issues since. Hopefully it stays that way.