Fuel Injection
Posts about fuel injection systems and related topics.
748 topics in this forum
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by looking at old posts i was able to remove and put in new sending unit, o ring and locking ring. 99% sure its all in correct. I am getting ready to attach wiring. Pretty sure the yellow wire with cap goes at top (one with small bit of rubber on stud). Also think the other cap, blackish/redish wire goes to bottom stud. Anyone have an clue what the other 2 wires are for? many thanks
Last reply by SteveJ, -
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Merry CHRISTmas! Slowly moving on our resurrection project which currently has us tackling the fuel tank. I knew we would be in trouble 5-6 years ago when we purchased this project and attempted to drain the tank of a car that had been off the road for about 20 years. The drain plug came out with some slight persuasion but had to get a small phillips screwdriver to poke through and allow the old fuel to drain. The drained tank was removed and set aside in our shop and now we have recently begun to evaluate the tank. The exterior is in excellent condition, factory stampings still visible, lock ring removed quite easily, fuel sender unit intact but rusted solid, and ha…
Last reply by One Way, -
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New member here, so I don't know if this has been covered before. I've found a replacement for the original 280Z 280ZX AAR that works much better, is relatively cheap and best of all it's from Nissan. No more Toyota Cressida valves!! Nissan part # 22660-45P00. These are off a Z32 300zx/early Infiniti J30 and will bolt right on to any 280Z or ZX. One slight modification is that the terminal locating tab on the electrical connection is slightly offset from the original. It's not needed. 5 minutes work with an X-Acto knife or file to remove it and you're done. This is a new style " Rectangular " model that can be easily disassembled for cleaning and has a composite slide…
Last reply by LorenB667, -
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Greetings, new owner of an old 78 280Z 2+2, my 1st post so be gentle..... I put a hole in the filter screen of the fuel pump when I was trying to take it out to clean. Didn't realize it used a screen. Is there a place to buy replacement/alternate filters screen? Would adding an inline fuel filter such as the Fram G3 in front of input nozzle be good enough? NOTE: I search through this forum and ran across a reference to http://atlanticz.ca/zclub/techtips/fuelpump/index.html which was where I realized there was a fuel screen. The image below is from the link.
Last reply by jonathanrussell, -
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Hey Guys, I hate having to post in the fuel injection section of this forum, because I hate EFI issues, but here we go. I will try to be as detailed as possible. As you know I have had some EFI issues in the past, but I got them all sorted out about a month or two ago and my car was running near perfect. In the past two weeks I have been having an issue where the car will either surge at idle, buck hard under part throttle or hit essentially a rev limiter. Happens damn near randomly, except it has definetly been getting worse over the past few days to the point where it is undriveable as of this morning. I first noticed it about two …
Last reply by kickstand80, -
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Is it possible to improve cold start cranking time? The car has new plugs, wires, cap, rotor etc and runs great once its started. It's also worth noting that after the car has started once, it will start considerably quicker the next key turn (demonstrated on the video). Video: https://www.youtube.com/watch?v=yiT8P_TLuLM My old mechanic said it simply does this because the engine "just takes longer to build pressure than other cars." There are no vacuum leaks (checked with a cigar) but there is oil blowby via either worn piston rings or valve seals (I know that due to there being a small amount of oil on the plugs) but I'm not sure if that could be the reason…
Last reply by Patcon, -
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I'm getting ready to drive my 280 now that the heat has lowered in Alabama. Anyhow, plans so far are to remove tank plug to drain old fuel then run 2.5 gallon gas can straight to the pump, bypassing the tank. Hopefully the return will let new gas to flow back to the tank and into my catch basin never going through the injectors. I'm thinking Seafoam for those after replacing my 2 fuel filters. The OE can and the G3 out of the tank. Is it that simple? Thanks for any input. I've forgotten more than I remember...
Last reply by siteunseen, -
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Does anyone know the what the amperage is of the EFI relays (the ones in the plastic bracket clip on the battery-side of the relay bracket? This is the fusible link that comes off of the positive terminal of the battery and not the links that are in the 2 pods with the white caps.
Last reply by chaseincats, -
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Hi. I have a '72 240Z with a Rebello engine, TWM EFI/etc, and a '76 fuel tank plus an old, used '76 fuel pump. The fuel pump is quite functional but noisy so I wish to replace it with a quieter and perhaps more efficient model. Any ideas?
Last reply by JayZ12, -
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Stock 280Z owners — how noisy is your fuel pump? Can you hear it spin up when you turn on the ignition? Constant running sound while driving? Annoying?
Last reply by JayZ12, -
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Question for you - my friend's AFM's arm is loose in that you can wiggle it back and forth about a millimeter or two. Tuning the car with an AFM is obviously impossible since the resistor arm isn't getting consistent results. I'm guessing there's a bushing in there somewhere that went bad. Can these be opened up, and if so, are the bushings available?
Last reply by Captain Obvious, -
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Hey gang, My friend picked up a 75 280 and its not running all that great. We found that injectors 5 and 6 have 10.3 volts with the key in 'on' (but not running) but injectors 1-4 have something like 0.3v. According to the FSM, there are two dropping resistors, one that covers injectors 1-4, and one that covers injectors 5-6 so I'm assuming those (or the connectors) would be the problem. I have never heard of those going bad or causing problems though. I thought the injectors were supposed to get 6v after the dropping resistors - anyone know how they could be getting 10.3?
Last reply by chaseincats,
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