Ignition System: Cranking very well but won't start 75 1.8FI, Fixed: Major concern Ignitor and #3 fuel injector. :THANKS TIM! Options

[ndfrigi]

Need help diagnose from members!

Well, last saturday Feb. 13 I joined fellow members at the Aliso Viejo Cars and Coffee which is about 30 miles one way. After the event, drove home and for less than 2.5 miles away from home at a traffic light, my tachometer is bouncing between 2.5k to 3k rpm (sorry not 3.5k to 4k rpm on what I have said on the other thread). But the actual is pretty much on normal idle of less than 1k rpm. When about to go on green light, engine died. Tried to start the engine but it is just cranking (cranking very well), but the engine won't engage.

Some good members here already mentioned about ignition circuit. Well today, I was able to checked and opened the rotor cap, and I found out that I have/had Pertronix Electronic Ignitor which I already forgot since the last time I opened it last 2011 (Since the engine is running very well after I was able to make it run after fixing it from the time I bought. I haven't open it since then. I even bought lately a spare of contact points and condenser to replace it soon).

So a friend of mine was here this morning and asked him to start the engine and try touching at the base cover of my front mounted fuel pump and I don't feel any vibration. So we tried to unplug fuel hose from the SS engine tunnel lines which is a direct supply line from fuel pump to engine bay before the fuel injector line. We did crank the engine but no fuel is spitting out from the line.

So is it fuel pump issue I have?

In addition, a member also mentioned about the fuel pump relay from the relay board. But after opening my relay board cover. I noticed there is some wiring that was changed/modified. No round relay for the fuel pump terminal.





Thanks again for your help!

[timothy_nd28]

Another LJet up and running, back on the street where it belongs (IMG:style_emoticons/default/aktion035.gif)

Even new replacement parts can't be trusted which is why due diligence is needed when troubleshooting any system. Of course none of this is "rocket science" just replacing parts because it makes you feel better is like a Virologist predicting the correct seasonal flu vaccine.

I'm glad that I kept you from replacing the whole distributor merely because your new mechanical ignition points where shorted (which was a freak of nature all in itself). The shame in all of this is that we had to take our conversation off line because it seemed to be annoying to some.
There seems to be a lack of troubleshooting procedures for the Ljet systems on this forum. Every successful diagnosis is valuable for future peeps searching and trying to find how to fix their own car vs hiring their local mechanic.
I have received many personal PM's from members thanking me for fixing their Ljet 914s, even though I have never spoken with any of them. They say it was all thanks to the old threads they had found through the search feature.
I would never berate other rocket scientist from chiming in with their insight when collectively trying to solve a problem, I would only expect the same courtesy in return.

Carry on with the plan of the day