Fuel Injection
Posts about fuel injection systems and related topics.
748 topics in this forum
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I recently posted in my reliability update the my brake booster was leaking. Once it gets bad, its easy to diagnose: A sucking sound in the cabin when brakes are applied along with hard braking and engine surge during braking. Long story short: All of this goes away once the brake booster is replaced and everything is properly re-attached. Early Warning Signs What I didn't realize is that my Z was telling me for a few weeks that the brake booster was going bad. It did this with an occasional engine surge at idle (it would only go down to maybe 1500 rpm's at a stop light). When this happened though, I would give the throttle a quick kick and it would get back to norm…
Last reply by sscanf, -
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Hi All, I have been missing from these parts for a little while. Too much going on but my 1976 280Z has been my daily driver until this week (brake booster see below). Not much to report except that it starts every time and has (generally) been running great. Highligths: 1. About a month ago I took my buddy to see Pat Benetar at the Casino Ballroom in Hampton Beach, NH. A 130 mile round trip drive. I warned him that it was a much bigger drive than had been attempted before in the Z but he insisted that we take it. I loaded up with a complete tool kit (based on recommendations from here). Had the front wheels balanced. Doused all the wires with WD40 (thunderstorms…
Last reply by sscanf, -
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Hi guys, I'm thinking there are no OEM fuel hoses that fit from gas tank to fuel pump for purchases out there. So my ? is where is a good place to buy the fuel hose and i"m assuming it should be EFI type of hose/line!? Ideas where to buy? in Minnesota. Thanks for help. :stupid: Deb
Last reply by Hunter260Z, -
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I recently bought a set of 6 remanufactured FJ3 fuel injectors for my 76 280z. My only question is do i have to buy the o-ring kit and holders and if so are they specific to this injector or do i buy the one that is listed for 280z. Ive been doing some searching and seem to be coming up on blank. thanks
Last reply by sscanf, -
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Car is a 76 - 280 totally stock and was running great, no problems at all. I have a car show next week to go to and wanted to clean the car up a bit, so I got it home and worked on it (cleaning up) and add two 5 gallon cans of gas that I have had for about 3 mo. to the gas in the car , made almost a full tank. Took the neighbor for a quick trip around the park and dropped him off and want to take the car back to the garage I keep it in. This is when every thing when crazy. The car started to juke and buck as I accelerated until it just would quit running. It would restart and run for about a minute and do the same thing. I finally got out of the car in a parking lot …
Last reply by mgood, -
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Hello guys I resently bought a "new" 77' 280z. I have a problem with it though, when i start it up cold it just dies. When i press the accellerator it revs fine, but it dies when i let go. When the car gets warom it work about perfect, it "jumps a little up and down every now and then. Anyone have any idea what this could be? Also it gets a little hot, i'd say 10 % over the middle of the "temp-meter" Should i be conserned about that? -B
Last reply by Bunnyhop280z, -
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Hi I'm new to this page and the car only owning it for 2 months. Being 17 and being used to dealing with carburetors. So to the issue it is running rich I have replaced the coolant temp sensor and the 7th injector plug, have adjusted the air/fuel screw also but still getting too much fuel, please help.
Last reply by siteunseen, -
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Hi - The 78 280z has been running well most of the time since my last go round with the salt bridge on the TPS and new injectors. However I (and my son) have had intermittent stalling issues when on the road. Both times in the last month, we were able to "rap" on the ECU box with our knuckles and get the car to restart for the ride home. Once it happened after about 10 miles away from home, and once less than a mile. Both from cold starts. We have reflowed the pins from the 35 pin connector to the ECU board, but this seems to be a vibration issue. Some times I can change the way the car runs in the drive way by "rapping" the ECU. Unless I can find something obviou…
Last reply by djwarner, -
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I just made the temp sensor tweak to my 1976 280Z and its improved my cold performance to the point where I was able to replace my ball valve with an ebay Aux Air unit (from a Porsche by the way). I can now start it cold and not have to pop the hood or feather the accelerator for any reason. Very happy about that. Still messing with the settings on the pot (all I had on hand was a 5K pot so its a little touchy - it seems to be running nicely at 10% of the range - presumably about 500 ohms). Anyway, this has me wondering if anyone has attempted to fix the source of the problem on the ECU. I found a photo of the boards and I see two fat resistors on that board (1 Watt…
Last reply by superlen, -
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When they say" "Not for Fuel Injection Systems", They mean it! See photo. Driving home last week I was suddenly awash in unburnt fuel fumes. Only about half a mile from home (and, surprisingly, it was running OK). I pulled in the driveway and found a ruptured line (the piece between the hard line and the fuel filter). This line was installed by a PO but never checked by the current owner . Replaced them over the weekend (and the fuel filter while I was at it - my gauge shows a very slight increase in fuel pressure at idle).
Last reply by Captain Obvious, -
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Hello all, I have a 1978 280Z and it will only start after sitting for a few days. After sitting for a couple days It will run until I turn it off, then I cannot start it again until it sits for two more days give or take. I tried another ignition coil. I changed all the spark plugs. Tried a new rotor. It has a newly remanufactured distributor. Sounds like it's flooded maybe? It IS getting a good blue spark It is getting the spark, at the right time (took valve cover off, made sure position of dist in relation to cam lobes on #1) Before the mandatory two day wait after last run, It WILL NOT start if I introduce Starting Fluid into the engine. It will NOT start …
Last reply by superlen, -
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I received some literature from a place called Michael's automotive in IL that's was about a Vapor Line Adapter Kit for the S30. Has anyone heard of it or this adapter? It doesn't say much, but a phone number and that the representative will be at the ZFest. I have no idea what it's even for... thxZ
Last reply by Jarvo2,
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