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Showing results for tags 'FI'.
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Hello All, I had a frightening moment with my '77 280Z after replacing old fuel hoses. I started it up and one of the injectors with the factory crimped hoses tore and started spraying fuel down on my headers. Luckily there was no fire and I had an extinguisher in hand. What has me really disturbed about this is that I purchased these injectors last year and they've only been running on the car for a total of maybe 2 hours at most. My fuel pressure doesn't exceed 40psi (have a mounted gauge). I replaced the hose on this injector, which is described in other threads on this topic. I don't have a concern with replacing the other 5 injector hoses, but I would rather trust that the manufacturer of the injectors knew what they were doing and there's something I should be aware of to prevent risk of a future fire. The tear happened just below the hose clamp (flat banded clamp). The clamp was pretty tight but didn't seem extreme. When looking at the 5 remaining hoses, they appear to get skinny in the middle like they're under serious vacuum. The outsides look in perfect shape but I'm a little concerned with the shape is all. I purchased all injectors at the same time so I can assume I would experience this issue at any point with the others. Has anyone else had a similar experience to this? I would typically replace and test on most things but I don't want to repeat my last experience. Thanks
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So a little back story (without going into too many details): I purchased this car (1977 280z bone stock and sitting in a barn) extremely cheap ($900), everything was there and seemed to be in place; however, the previous owner said the car needed a new AFM. I purchased the car and AFM and installed it. The car ran, idled, etc. While going through the entire car, I found that the engine bay wiring harness (fuel injector clips, other 2 prong clips, and wires looked like they had seen some sort of heat as they were all fringed and brittle. I was able to source a completely new harness from the ECU forward; however, it came out of a '78. Everything will match up except for the AFM connector. My '77 has 7 pins where the new harness from the '78 has only 5 pins. This is because Datsun changed from having the fuel cut-off controlled by the AFM to having it integrated to the oil pressure switch/sending unit (feel free to correct me if I'm wrong, but i'm fairly close with that statement, i think lol). My question is this: Can I still use the '78 engine harness on my '77 and if so, how do i bypass or "jump" the fuel cut-off pins/switches within my '77 AFM? I have heard bits and pieces out there that this can be done but after hours of searching, was empty handed. I'm extremely excited to get my hands dirty and get this Z on the road as it's my first 280z. Any help will be greatly appreciated. Thank you in advance. -Adam
