1994 Disco..crank but no start
#1
1994 Disco..crank but no start
I got a 1994 discovery that stalls,then will restart after 20 min or so..now it won't start at all..My on board diagnostic display, won't display anything..fuel pressure is good..just replaced fuel pump,fuel filter, gas tank and filler neck vent tube,spark plugs,oil,oil filter. Gets spark. Cranks but won't start. I've tried the manual eka code 1515, thinking it might be immobilized but there is no alarm light illuminated on the dash.Please Help.Thank You
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Thank u for your quick response, it's greatly appreciated. Disco has been siting in drive way for about 4 months now as I've relentlessly dug thru it with no progress. When I pulled out the origanal plugs they were soaked in gas. I removed the new ones and they were dry. I'll check again though just to make sure. That sounds like the ECU could be the culprit. MAF looks good but will double check. I wanted to ask your opion of the what kind of starter fuel to use before i attempted it.is there a certain one better or does it matter?
#6
Starter fluid (ether) is pretty generic. WD 40 will work for some engines. Don't use a lot. If it does this and won't start back until cools off, could also be the fuel temp sensor on the fuel rail or fuel pressure regulator (short piece of vacuum hose on it).
The fuel temp sensor is supposed to tell the ECU to adjust fuel pulses to get bubbles out that form in hot weather (vapor lock). The fuel temp sensor for the Lucas system would range between 9100 ohms (14F) to 150 ohms (212F). So one that was open would make engine run rich and one that was shorted or grounded (skint wires in harness) would make ECU think fuel was way too hot. I would guess you could spray the thing with brake cleaner or such to cool it off when it acts up to verify. Here's some pages on all the fuel injection parts, shows their values, etc.
The fuel temp sensor is supposed to tell the ECU to adjust fuel pulses to get bubbles out that form in hot weather (vapor lock). The fuel temp sensor for the Lucas system would range between 9100 ohms (14F) to 150 ohms (212F). So one that was open would make engine run rich and one that was shorted or grounded (skint wires in harness) would make ECU think fuel was way too hot. I would guess you could spray the thing with brake cleaner or such to cool it off when it acts up to verify. Here's some pages on all the fuel injection parts, shows their values, etc.
#7
Checked plugs all had gas on them,two were soaked..sprayed starter fluid in the throttle body while trying to start it,with no luck..cleaned MAF sensor..maybe there is a relay I can't find, that isn't supplying pin 17 with power? Or a bad ecu or bcm?..my ignition key has been acting up too, wondering about the igintion switch..thank u for ur help
#8
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scwholesale1 (03-18-2021)