tonytman

Hello guys,

I have a 1999 honda accord ex and the check engine light is on I'm getting the code p1381, replaced the distributer and the code is still there. I read somehere that it could be the alternator, can anyone help me.

holmesnmanny

On obd2 cars the cyp and ckp sensors are at the oil pump and crank respectively.

Yes, the issue could be the alternator as well. You can buy a voltage meter that you can plug into your cigarette lighter for like $20 and monitor the voltage when driving.

Keep in mind Honda uses two modes, a low output mode and a high output mode for the charging system so sometimes itll charge at 12.50 and sometimes at the full 14.40 so keep that in mind when testing.

Lost Again

I'm with the alt.........just me . A very well documented issue on these cars.

"Holmes" - Just me but I'd rather the OP spend ~$15 on a cheap voltmeter. Those voltage meters you plug into the socket are "nice" but the voltmeter has so many more uses.