Have a 1995 Accord EX, 4cyld VTEC. Car started dying while driving. Replaced the main relay and fuel pump. Had previously replaced the electical part of ignition switch.

Car still dies while driving and is killing fuel pump. After looking through some schematics, I read the crank angle sensor sends a signal to the ecu regarding engine speed. I plan on checking that, but does anyone else have any ideas?

 

How many miles on car? What do you mean by "dying while driving?" Is the engine cutting off or is it stumbling and bogging despite you stepping on the gas? Any other symptoms leading up to this? Idle fluctuations? Hard starting? etc.

 

car has a hard shutoff, no warning like sputtering, etc. d4 flashes on dash and the check engine light comes on. private shop (out of town) oringinaly said fule pump relay was bad.

After we replaced the main relay it ran fine for a while then back to same symptoms. buddy who owns the car said the main relay was clicking realy fast (low voltage ?). He is dragging the car back into town this weekend where I will check the power and grounds with a meter.

 

Replace ignition switch with oem honda part only. I had to replace mine twice. 98 accord 4-cyl. 200k miles and original owner.

 

Or, you could diagnose the car.

The D4 and Check Engine Light is where I would start. What were the codes?