Mechanics

TROUBLE CODES P1738 AND P0401

1999 Honda Accord

Transmission problem
1999 Honda Accord 6 cyl Front Wheel Drive Automatic 93000 miles

My check engine light came on yesterday (1999 Honda Accord EX). I stopped at AutoZone and had a diagnostic done. Two codes came up: P1738 and P0401. Does either one of these require immediate attention? Would it be possible for me to do something on my own or should I get the car to my mechanic?

I am a bit concerned about the 1738 code as I had a new transmission put on the car in February. I have an 80 mile round trip to and from work each day; naturally, I don't like the idea of being caught somewhere in between with a problem.

Thanks.

Karl
Avatar
Kemson
August 9, 2008.




Hi Karl,

Thank you for the donation.

P1738 = 2nd clutch pressure switch.


http://www.2carpros.com/forum/automotive_pictures/192750_Accord99PressureSwitch2ndClutch_1.jpg



Check for loose/contaminated or dislodged sockets connections.

P0401 = EGR insufficient flow.

Possible cause is a clogged EGR valve and/or exhaust passage for EGR flow. Remove EGR and clear the carbon from the exhaust passage underneath.

KHLow2008
Aug 9, 2008.


AD