Vehicle is hard to start when cold. Shows code p1351. Have replaced ICM, coil on 1996 Chevrolet Blazer

and crank sensor. Any suggestions?

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3 answers 1 comment
where is the o2 sensor on the 1996 vchevy blazer
which one there may be several
Next test fuel pressure. Needs to have 60psi fuel pressure to run properly and start properly.
YOU POSSIBLY HAVE A CONNECTION OR WIRING ISSUE, BUT THERE IS A LONG DIAG TEST PROCEDURE TO DETERMINE THE PROBLEM