Originally Posted By: clinebarger
IAT nor CTS sensors go bad on GM vehicles very often.
CPI Injection is very sensitive to fuel pressure, Below 58 psi & the Poppet Valves will not open on a cold start.
Next time it "no starts" Try priming it with carb cleaner through the PCV hose. If it now starts....Fuel System issue.
I appreciate your comment. Now I have to ask how plugging the block heater in for 45 minutes will affect fuel pressure to that degree?
IAT nor CTS sensors go bad on GM vehicles very often.
CPI Injection is very sensitive to fuel pressure, Below 58 psi & the Poppet Valves will not open on a cold start.
Next time it "no starts" Try priming it with carb cleaner through the PCV hose. If it now starts....Fuel System issue.
I appreciate your comment. Now I have to ask how plugging the block heater in for 45 minutes will affect fuel pressure to that degree?