Guest masonvonritchie Posted November 7, 2004 Share Posted November 7, 2004 I can't figure out why this damn thing won't start! I have spark and compression and as far as I know all the EFI components are functioning, but the injectors won't spray! I don't even know where to begin troubleshooting it! The only thing I can think of is getting a new set of connectors. Anyone have any other suggestions of what I could look for? Quote Link to comment Share on other sites More sharing options...
innerware Posted November 7, 2004 Share Posted November 7, 2004 Really make sure that thet electrical connectors are aorking right. They get supper corroded and brittle. You can replace them for like 8 bucks a piece and I believe it is bosch that makes them. Motorsport auto sells them too. I did this cause mine was running like dodo and replaced my injectors eventually too. Not hard work but the injectors can be pricy. Make sure too that you have fuel pressure from the pump to the filter and then after the fuel regulator. Maybe a clogged filter or bad regulator or even a bad pump. Injectors might be fine. But I bet the rubber on the clips is all rotten. Quote Link to comment Share on other sites More sharing options...
Guest masonvonritchie Posted November 7, 2004 Share Posted November 7, 2004 a lot of theconnectors are pretty corroded. how do you change them out? also, i forgot to mention this. I know fuel is getting all the way to the injectors because a couple of them are leaking. I replaced 1 of the injectors because 1 was completely clogged, and still nothing, not even out of the new one. But i know there's fuel in the fuel rail. Quote Link to comment Share on other sites More sharing options...
Guest masonvonritchie Posted November 7, 2004 Share Posted November 7, 2004 oh yea, while i'm thinking about it... would the electronic ignition module on the distributor have anything to do with the injectors? The connections on it are corroded kinda badly as well. Quote Link to comment Share on other sites More sharing options...
Guest masonvonritchie Posted November 9, 2004 Share Posted November 9, 2004 Anybody else have any suggestions Quote Link to comment Share on other sites More sharing options...
jkube Posted November 9, 2004 Share Posted November 9, 2004 The corroded connector might be the problem, because I think the injectors are timed to open w.r.t. coil spark. If the wiring to the ecu is one of the wires from the box on the side of the distributor, then the ECU may not know when to trigger the injectors because its not getting a signal from the coil. Seems like a cheap thing to fix. Give it a try. Jeff Quote Link to comment Share on other sites More sharing options...
Xander Posted November 9, 2004 Share Posted November 9, 2004 are the fuel and return line switched around? This happened to a friend of mine. Everything seemed to work but there was no fuel at the injectors. Quote Link to comment Share on other sites More sharing options...
Guest 240zJake Posted November 9, 2004 Share Posted November 9, 2004 If the connectors are corroded, you could try cleaning them; maybe with something like this. Never use that particular product, but have used similar stuff at work. Will clean off oxidation, might be able to find some at a parts store. Quote Link to comment Share on other sites More sharing options...
Guest masonvonritchie Posted November 9, 2004 Share Posted November 9, 2004 are the fuel and return line switched around? This happened to a friend of mine. Everything seemed to work but there was no fuel at the injectors. i'm pretty sure i'm not. the top one is the fuel line right? If I'm wrong, I'm officially an idiot. Quote Link to comment Share on other sites More sharing options...
Guest masonvonritchie Posted November 9, 2004 Share Posted November 9, 2004 The corroded connector might be the problem' date=' because I think the injectors are timed to open w.r.t. coil spark. If the wiring to the ecu is one of the wires from the box on the side of the distributor, then the ECU may not know when to trigger the injectors because its not getting a signal from the coil. Seems like a cheap thing to fix. Give it a try. Jeff[/quote'] I'm gonna try the electrical contact cleaner that 240zjake was talking about but if that isn't it, I'm gonna get another ignition module for my distributor. It's the only thing that didn't really check out when I was testing all the components. I found a used one for 50 bucks but they're like 200 dollars new. Yikes Quote Link to comment Share on other sites More sharing options...
Guest masonvonritchie Posted November 9, 2004 Share Posted November 9, 2004 I heard a while back that you could use brake cleaner and a tiny screwdriver for this task. Could that work? Would it be easier to use an actual electrical contact cleaner? Using the brake cleaner would probably take a long time to do it with but I was just curious. Quote Link to comment Share on other sites More sharing options...
Guest 240zJake Posted November 9, 2004 Share Posted November 9, 2004 I dont know if the brake cleaner would crack the plastic or not. A better method would be if you can get an eraser in there you could use that to clean the contacts with, or soak them in alcohol to break down the crud, or you might could use a screwdriver and something lightly abrasive. I just thought the contact cleaner would be a faster solution. Quote Link to comment Share on other sites More sharing options...
Guest masonvonritchie Posted November 9, 2004 Share Posted November 9, 2004 well the contact cleaner would probably be best but i'm a little short on money and since my car doesn't run, it's a little hard for me to get around these days. so when I do get the contact cleaner, do you just spray it on there, let it sit for a minute then scrape it off? Quote Link to comment Share on other sites More sharing options...
Guest 240zJake Posted November 9, 2004 Share Posted November 9, 2004 I think you just spray it in there and let it sit then spray more in to wash out the crud. But a cheaper solution, get the big stuff out with a needle or a screwdriver first, then if you have one of thoes big pink erasers, cut it down so it just fits in the connector and use it to scrub the contacts clean. Quote Link to comment Share on other sites More sharing options...
Guest masonvonritchie Posted November 10, 2004 Share Posted November 10, 2004 hey i found something else. I went out to check the air flow meter flap to see if it was stuck, which it's not, and i went and looked at the actual ecu and i saw a wire coming from the harness that didn't have anything plugged into it. It's a male, t-shaped plug. I was thinking this might just be a wire that never had anything to go to but why would it be there if that was the case? Anyone have any idea what this might be? Quote Link to comment Share on other sites More sharing options...
Forrest Posted November 10, 2004 Share Posted November 10, 2004 http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=7933528695&rd=1&sspagename=STRK%3AMESE%3AIT Way cheaper than 8$ a piece from me. Quote Link to comment Share on other sites More sharing options...
Guest masonvonritchie Posted November 10, 2004 Share Posted November 10, 2004 yea I see those listed quite frequently. i might end up having to get them. Quote Link to comment Share on other sites More sharing options...
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