One cylinder poppin', Help me D-Jet gods!! Options

[BiG bOgGs]

I pulled my 76 2.0 stock fuel injection engine a few months back so that I could plug up some oil leaks. Other than the leaks, the engine was running O.K. Well, as O.K. as I could tell after a couple of weeks of owning my first 914. I put the engine back in just a couple weekends ago and have slowly been trying to get her going again. For a couple of days I could only get her to spin with the starter, but I wasn't getting any fuel.....I figured out today that I hadn't connected the wiring harness to the distributor. Now that I have it connected I cranked her over and I am now firing on just the #3 cylinder. I also don't smell and raw fuel coming out of the exhaust. And when I open the throttle, she seems to power up a little bit, but not much.


major points

76 2.0L D-Jet

rebuilt/cleaned injectors from cruzin performance

new large and small injector rubber

new vacc. hoses all around

just had it tuned up before I needed to pull the engine and I didn't screw with the ignition system at all.

I hear no clicking when I move the throttle switch (thought I was supposed to hear the injectors clicking)


If there are any other bits of info that will help in the trouble shooting process please let me know.

Jim (n00b)

[nola914]

I suggest that you pull all four of the injectors and put them into similar size glass jars. Crank the engine for 10 - 15 seconds. Check the amount of glass in each jar. The amounts should be within 10% of each other. I use small Mason "canning" jars because they are very sturdy, and I tape them to various components on the engine to keep them from moving. Be sure to have a fire extinguisher handy, since you will be pumping raw gas into open containers on top of your engine.

If one (or more) of the injectors are clogged, you should have them commercially cleaned. I seem to recall that there is a small screen filter inside of the injector. If its clogged by rust, no standard solvent will clean it. The injector place will also be able to tell you if the windings inside the injector meets spec. If your windings are failing, you need to find replacement injectors.

I'm assuming that you have verified the electrical continuity of the injectors back to ground at the back of the engine and the energizing wiring from the ECU, as the evil Doctor suggested. The injectors wires are pins 3 thru 6 in the ECU plug.

[BiG bOgGs]

I suggest that you pull all four of the injectors and put them into similar size glass jars. Crank the engine for 10 - 15 seconds. Check the amount of glass in each jar. The amounts should be within 10% of each other. I use small Mason "canning" jars because they are very sturdy, and I tape them to various components on the engine to keep them from moving. Be sure to have a fire extinguisher handy, since you will be pumping raw gas into open containers on top of your engine.

If one (or more) of the injectors are clogged, you should have them commercially cleaned. I seem to recall that there is a small screen filter inside of the injector. If its clogged by rust, no standard solvent will clean it. The injector place will also be able to tell you if the windings inside the injector meets spec. If your windings are failing, you need to find replacement injectors.

I'm assuming that you have verified the electrical continuity of the injectors back to ground at the back of the engine and the energizing wiring from the ECU, as the evil Doctor suggested. The injectors wires are pins 3 thru 6 in the ECU plug.

Had the injectors serviced by Cruzin a few months back. They were kept in the plastic they were shipped in until I got around to installing them.

I did pull the Driver side injectors and I am not getting even a single drop out of either injector.

I will check the wiring continuity this weekend. I am also going to see if any of the injectors fire when hooked up to my know firing cylinder (#3)

With this long T-Day weekend, I hope to get all of this worked out.