Fuel Injection
Posts about fuel injection systems and related topics.
748 topics in this forum
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Question for you guys, would jumping the terminals to engage the high-altitude switch improve my mpg? Also, would this cause any engine damage if run like this in an area that doesn't require the switch to be on? Apparently with it engaged, it decreases fuel by 6%.
Last reply by chaseincats, -
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I had the engine and front end redone a couple of years ago and noticed that when I drove it for the first time that I could hear the fuel pump. It seemed loud and I don't remember hearing it from my memory of 20+ years ago. The first question I have is whether I should be able to hear it when in the driver's seat? If not, is that a sign that I should replace it? It has been maJJking this noise for over 2 years and I drive it about 10-15 miles a week. I then noticed a couple of weeks ago that as I got on the highway to go 60-70 mph and put it under some load that it started hesitating. I backed off and got it back to the garage and it was idling fine. My second…
Last reply by Mark Maras, -
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As some of you might remember, I swapped my original fuel sending unit on my "78 280Z a few weeks ago. Although the original sender measured fuel level adequately, the "FUEL" warning light had stopped working a couple of years ago so I decided to spend some quality quarantine time swapping it for a new reproduction unit from Z Car Depot. I had already tested the yellow/blue lead and assured I had continuity from the "FUEL" light in the dash all the way back to the sender plug. I plugged in the Z Car Depot sender to the harness before inserting it into the tank and upon turning the car key to the "ON" position the "FUEL" illuminated and I could change the position of …
Last reply by Zed Head, -
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Hey mates Has anyone updated their fuel rail to something like the pallnet or similar and run an after market adjustable FPR? Which ones do y'all use? The ones I'm finding are all 40 PSI + which is ever so slightly above the stock 36 PSI. Thanks Cheers
Last reply by Pomorza, -
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Im helping out a fellow member who's in need of a fuel damper bracket that mounts above the pump. I've searched from W to the last W.com and haven't had any luck. If anyone has a 280 parts car maybe you could help us out? It would be very much appreciated. Here's what he needs... Thank you for any replies. Cliff
Last reply by siteunseen, -
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A few of you may know this. But last year I designed and made a coil on plug bracket based of Bryan Blake’s ford coil on plug design. It uses the Nissan coil head used on the Nissan GTR R35. Works perfectly, bolts on and you can even buy a very nice pre made wiring harness from platinum racing products. Coils are fairly cost effective. Takes a specific boot (2-3 actually work) to work. It’s one of the best coils on the market. I believe only the AEM coil beats it. Basically he took my design based off of his, then fixed some of my issues and is now selling them. Bottom pictures are my bracket installed on my 240z.…
Last reply by duffymahoney, -
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I was reinstalling all the hoses leading to/from my carbon vapor canister today and I noticed something interesting. The short hose that connects to the steel line leading back to the fuel tank isn't simply a rubber hose. In the attached photo, i'm referring to the rubber hose connected to the canister port labelled by a blue dot (Fuel Tank). As I was about to reinstall it I thought I'd blow into it just to make sure that it wasn't clogged and, surprisingly, I felt resistance that seemed like a clog. Upon further investigation, I discovered that there is an obstruction in the hose that seems purposeful. This obstruction seems to be metallic and has a small hole through…
Last reply by Captain Obvious, -
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Quick question for you. I can't seem to find a wiring diagram that includes the coolant temp sensor & thermotime switch wiring colors in the FSM. The thermotime & coolant temp sensor (temp sensor for the ECU, not the temp gauge) each have a bullet-style to standard EFI connector harness (one harness has green wires and the other has black). Do you guys happen to know which harness connects to the coolant temp sensor and which goes to the thermotime? -chase
Last reply by Zed Head, -
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Hi guys, I am going through the AtlanticZ contact cleaning checklist (http://www.atlanticz.ca/zclub/techtips/electricalconnections/index.html) and have finished all but the AFM ground which I can't find. Does the 78 with the 5-pin AFM not have a ground wire? Any ideas? -chase
Last reply by chaseincats, -
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https://www.amazon.com/MOTOALL-Injector-Connector-Harness-Pigtail/dp/B07H75K959 I emailed the seller, but Amazon said his mailbox is full.
Last reply by EuroDat, -
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The FUEL DAMPER on my 1978 280Z is leaking and dripping gasoline. Aside from the obvious safety issues, it creates a pressure loss in the fuel system. The FUEL DAMPER sits directly above the fuel pump. Its purpose is to provide a smooth flow of fuel to the engine, so it is unwise to bypass it. This is Nissan part 22675-N4205 which is NLA and very hard to find. It was used in the 280Z, 280ZX, 810 & 200SX. The early unit has the adjusting bolt while the later unit does not. But both have the same part numbers and function the same. See the pictures. I have called all the usual vendors and have had no luck in finding one. Motorsport says they can’t even get it out of J…
Last reply by UrbexExplorer, -
- 5 followers
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Alternatively, if you have an extra one you'd be willing to sell, let me know. It seems like mine is broken but I'm still doing a bit of troubleshooting and cleaning. The Bosch one I've been linked before is a bit expensive and I'm wondering if there are other options (https://www.ebay.com/p/77022997)
Last reply by montanagrl,
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