2004 Honda Civic fault code P1237

Tiny
ANDY2009
  • MEMBER
  • 2004 HONDA CIVIC
  • 4 CYL
  • FWD
  • MANUAL
  • 66,000 MILES
My car a 1.7 cdti civic loses power and won't go over 40mph intermittently, a friend read the fault code with a reader but doesn't know what it is P1237, what is this fault code and how can the fault be repairerd. The engine light is also lite up on the dash?
Thursday, March 26th, 2009 AT 6:37 AM

1 Reply

Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Found 2 descriptions for P1237.
1. Fuel Pump Secondary Circuit Malfunction
2. Cylinder 1 Fuel Injector Circuit - Open Circuit

I would check your cylinder 1 injector wire harness, first. Make sure wiring is good, properly grounded.
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Sunday, March 29th, 2009 AT 6:58 PM

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