Hi all,
Posted this on VolvoForums but from the looks there is more action over here for these antiques
1986 760 that sat for years due to bad harness. Gas turned to brown gunk of course so after replacing the harness I did get it running but not well. Time goes by and I have some time to play with it again. Pulled and replaced both fuel pumps and filter, cleaned to injectors, and got injectors to flow fuel with a battery and brakecleen. Put everything together and no start. Have fuel, don't have a ground for injectors to fire. Have 12VDC on green wires. If I manually ground out injectors all flow some fuel.
Where do all of the grey ground wires get their signal? ECU? I'm guessing I have a bad wire somewhere but wanted to ask you guys before cutting into the harness.
Also, one of the green plastic caps on #1 injector went into the intake and head. I cannot see it after pulling the intake so it's either already in the cylinder or hiding out of sight on the valve. I'll bring an inspection mirror home tomorrow and see. If it's in the cylinder I really don't see a problem with it getting crushed and spit out. What do you think?
Thanks ahead of time for your help.
Posted this on VolvoForums but from the looks there is more action over here for these antiques
1986 760 that sat for years due to bad harness. Gas turned to brown gunk of course so after replacing the harness I did get it running but not well. Time goes by and I have some time to play with it again. Pulled and replaced both fuel pumps and filter, cleaned to injectors, and got injectors to flow fuel with a battery and brakecleen. Put everything together and no start. Have fuel, don't have a ground for injectors to fire. Have 12VDC on green wires. If I manually ground out injectors all flow some fuel.
Where do all of the grey ground wires get their signal? ECU? I'm guessing I have a bad wire somewhere but wanted to ask you guys before cutting into the harness.
Also, one of the green plastic caps on #1 injector went into the intake and head. I cannot see it after pulling the intake so it's either already in the cylinder or hiding out of sight on the valve. I'll bring an inspection mirror home tomorrow and see. If it's in the cylinder I really don't see a problem with it getting crushed and spit out. What do you think?
Thanks ahead of time for your help.