Volvo Owners Club Forum - View Single Post - '89-740 (8 valve) No Start

Volvoaus · Jul 25th, 2020, 01:48

1989 - 740 B230 (8 valve) cranking over but not firing/starting:

-Fuel
1. Fuel in tank, oil in donk, new radiator, 360k on clock. Revs been indecisive lately
2. New fuel filter
3. In-tank fuel pump used replacement (multi-meter saying OK)
4. Main fuel pump used replacement (whirring sound when ignition turned on)
5. Minimal grit in tank

-Electrics
6. All fuses OK
7. Fuel injection relay used replacement (clicking)
8. Radio suppression relay used replacement (clicking)
9. ECU problematic 02800 000-‘561’ used replacement (‘951’ came out, will put back in)
10. Getting spark -fairly new plugs (bit sooty but not wet)
11. MAF sensor cleaned
12. TDC sensor ragged – tidied up (sits almost directly down from rear of tappet cover)

-Maybe
13. The Haynes manual talks about engine speed sensor (haven’t found this one yet, only TDC)
14. Haven't checked distributor area yet

Car is on street other side of town. Any advice/suggestions greatly appreciated

Jul 25th, 2020, 01:48	#1
Volvoaus New Member Last Online: Jul 16th, 2021 07:30 Join Date: Feb 2019 Location: Melbourne	'89-740 (8 valve) No Start 1989 - 740 B230 (8 valve) cranking over but not firing/starting: -Fuel 1. Fuel in tank, oil in donk, new radiator, 360k on clock. Revs been indecisive lately 2. New fuel filter 3. In-tank fuel pump used replacement (multi-meter saying OK) 4. Main fuel pump used replacement (whirring sound when ignition turned on) 5. Minimal grit in tank -Electrics 6. All fuses OK 7. Fuel injection relay used replacement (clicking) 8. Radio suppression relay used replacement (clicking) 9. ECU problematic 02800 000-‘561’ used replacement (‘951’ came out, will put back in) 10. Getting spark -fairly new plugs (bit sooty but not wet) 11. MAF sensor cleaned 12. TDC sensor ragged – tidied up (sits almost directly down from rear of tappet cover) -Maybe 13. The Haynes manual talks about engine speed sensor (haven’t found this one yet, only TDC) 14. Haven't checked distributor area yet Car is on street other side of town. Any advice/suggestions greatly appreciated Last edited by Volvoaus; Jul 25th, 2020 at 04:26.