I had a1993 cvh efi. The fuel pump failed. The car was 17 years old. I decided to go through the system from tank to filter in the engine bay. There was some muck in the pump ( I cut it open to check).
Flushed the tank using the drain plug to empty. A couple of bits in there ( filtered the flushing petrol to check). So, replaced the pump, new flexible hoses, extra filter between tank and pump. New main filter. I cut the old one open and it was pretty clean anyway so I didn’t strip anything further on (injectors etc). The old flexi pipes were ok on the outside with no cracking etc. and nothing easily seen inside. No misfires after that refurb. I also put new plug leads on later as a further upgrade. I still had the originals also 17 yrs old.
Looking at the age of your car then perhaps replacing the older original parts is worth it. Age causes deterioration, especially rubber exposed to ethanol. Use ethanol safe replacements.
Last edited by sospan; 02/06/20 10:43 AM.
