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Hello everyone, the time has come for me to seek the wisdom of the all powerful b/board. My latest problem leaves me with a no start condition on my old nemesis, the dolphin blue 93 245 w/ LH 2.4.
The problem started while i was driving down a city road, Im cruising along around 40 mph and all of the sudden my engine shuts off, Ignition lights come on and i glide to the nearest parking lot. This happened to me once before, I simply restarted the car and drove off, so this time I did the same thing but nothing happened. I noticed that when the ignition was turned on, the main fuel pump wasn't turning on to prime the fuel rail.. so thats the main prob, I was able to jump fuse 6-4(L-side), it started up fine and i was able to limp home.
SO, Im 99.5% sure my no start is due to signal not being sent to my main pump. The system/fuel relay closes when ignition is on, as it should (not to mention it is only months old) and the main pump/Filter are bosch and are weeks old (both wires are connected). My in tank pump works as well.. for what its worth.
When I got home the first thing I tried was to check my relay plug with the ignition on to ensure i was getting 12v at pin 30 ( i kinda knew this anyway because the relay closes when ignition is on). Pin 30 was showing 12v as it should, but, when i tried to jump 30 to 87/2 nothing happens... nothing. No spark when the jumper leads touch, no fuel pump whirring.. nothing. Also at fuse 4 there is no voltage with the ignition on. This is pretty much the extent of my diagnosing skills, hence this thread. Ive read some things about the 25A fuse, not sure what that is exactly (is it on the fuse panel or in the engine bay?). Either way, at this point I'm thinking ECU, Am i wrong to think this? Car runs great when it starts 1-1-1 on both 2 and 6 on the obd. Literally just drove this car down to the keys with no problems, thank god it happened here and not there.
There is one more thing i can't piece together and then I'm done, this morning, I went to start the car hoping the problem was resolved and much to my surprise the car started!.... for about 5 seconds. So I'm thinking there might have been some residual fuel in the rail from me jumping the fuse panel to limp it home. subsequent restart attempts result in a kind of sputter start, like there is still fuel in the rail but not enough to start. SMH.
Im trying to resolve this problem by the end of the month as I just got hired full time with a local fire dept and need reliable transportation.
Thanks brick boarders
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