Hey oh …long time reader, first time poster for troubleshooting…anyways I’ve searched and read tons of mud posts over the last 3wks pertaining to engine shut downs but unfortunately I haven’t been able to solve my issue…looking for any advice to point me in new direction/focus within FSM…
Background: i’ve had my ‘93 FZJ80 for 2 years and i’ve slowly been baselining it and just recently completed a big road-trip: Austin to Telluride to White Sands back home with only real issue was at altitude fuel tank venting and soft brakes…drove great in the heat though!
However once I returned home three weeks ago I’ve been getting this random engine cutoff only once the car has warmed up and been driven for 30ish mins…it drives great cold and warm but once it’s warm the frequency of engine shut offs increases… you can drive it…it’s doing great and all of a sudden the engine dies or you can leave it idling for 5-10mins then it dies…check out video…sometimes it’ll fire right back up most times it needs to cool down for a few minutes then fires back up
Engine parts I’ve replaced last 3 wks:
- FPR, EFI relay, distributor, dizzy, fuseable links, GM charcoal canister, vacuum hoses, deleted ERG valve, ‘94 ECU,
Replaced before Colorado trip over last year:
- brake master cylinder, radiator, thermostat, water pump, clutch fan, throttle cable, cats, 02 sensors, OEM new fuel pump
No CEL or codes currently, I’ve tested IAC and it passed, I’ve checked grounds and wires for a short nothing obvious…does VSV or hoses/check valves under the manifold cut the engine off? I need to test TPS…Thoughts? Thanks for any support!
Background: i’ve had my ‘93 FZJ80 for 2 years and i’ve slowly been baselining it and just recently completed a big road-trip: Austin to Telluride to White Sands back home with only real issue was at altitude fuel tank venting and soft brakes…drove great in the heat though!
However once I returned home three weeks ago I’ve been getting this random engine cutoff only once the car has warmed up and been driven for 30ish mins…it drives great cold and warm but once it’s warm the frequency of engine shut offs increases… you can drive it…it’s doing great and all of a sudden the engine dies or you can leave it idling for 5-10mins then it dies…check out video…sometimes it’ll fire right back up most times it needs to cool down for a few minutes then fires back up
Engine parts I’ve replaced last 3 wks:
- FPR, EFI relay, distributor, dizzy, fuseable links, GM charcoal canister, vacuum hoses, deleted ERG valve, ‘94 ECU,
Replaced before Colorado trip over last year:
- brake master cylinder, radiator, thermostat, water pump, clutch fan, throttle cable, cats, 02 sensors, OEM new fuel pump
No CEL or codes currently, I’ve tested IAC and it passed, I’ve checked grounds and wires for a short nothing obvious…does VSV or hoses/check valves under the manifold cut the engine off? I need to test TPS…Thoughts? Thanks for any support!