99 Honda Civic lx stalls codes, 1381, 1509, 0122 & 1457

Question

Only issue at this time is stalls after running (@idle) 30+ minutes,or about 15+ minutes of driving. Runs smooth until stopping. Will not stall while driving.

Answer 1

P1381 Intermittent interruption of the cylinder position (CYP) sensor circuit

P1509  Problem idle air control valve circuit

P0122 Low voltage problem with the TPS circuit

P1457 Evaporative emission control system leak detected

P1509 will cause the idle to be RPM to be low, what the IAC (idle air control) valve  does is maintain a target idle. a fault with the IAC will cause the stall condition,

 The IAC is located on the side of the throttle body.

Comments

Thanks, would you lean towards the IAC first before the code P1381?  Thanks I work at the local parts store, let me tell you helping fix other peoples cars are easier.

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The IAC would be better first, when you stall out you could also set a TPS code that why I would not lean toward the TPS, If you compare the TPS of your vehicle to that of a good one, you may not even need a TPS, as for P1381 this is a famous code for a Honda, At this particular year and make, there always a P1381. most of the fixes where to check the alternator for excessive ripples,  the other fix is look at the distributor there should be a shield in place, if its missing you can set a P1381.

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Thanks, yesterday we put on a new IAC. Runs perfect gain! I do really appreciate your time.