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@Mike

Interior design is more than just decorating a room; it's a profound discipline that blends art, science, and psychology to create functional, aesthetically pleasing, and safe interior spaces. It's about shaping the human experience within a built environment, influencing our mood, productivity, and overall well-being. More Than Just AestheticsAt its core, interior design is a problem-solving profession. It addresses the needs of the user, whether it's optimizing a small apartment for a family of four or designing an ergonomic office space that fosters collaboration and creativity. A skilled interior designer considers a myriad of factors, including: Functionality: How will the space be used? Does the layout facilitate easy movement and access? Is the furniture appropriately scaled for the room? Safety and Accessibility: Does the design meet building codes and safety regulations? Is it accessible for people with disabilities? Ergonomics: Are the furniture and fixtures comfortable and supportive? Does the design minimize strain and promote good posture? Psychology: How do colors, lighting, and textures affect mood and behavior? Can the design create a sense of calm, energy, or focus? Sustainability: Does the design incorporate eco-friendly materials and energy-efficient solutions? Key Elements of Interior DesignInterior designers work with a set of fundamental elements to create a cohesive and harmonious space: Space: The foundation of any design, space can be two-dimensional (length and width) or three-dimensional (length, width, and height). The designer manipulates both positive space (the objects within the room) and negative space (the empty areas) to create a sense of balance and flow. Line: Lines can be horizontal, vertical, or dynamic. They guide the eye and create a sense of movement. Vertical lines can create a feeling of height and stability, while horizontal lines can make a room feel wider and more grounded. Form: This refers to the shape of an object. Forms can be geometric (squares, circles) or natural (organic, curved). The interplay of different forms creates visual interest and rhythm. Light: One of the most critical elements, light can dramatically alter the mood and perception of a space. It includes both natural light (from windows and doors) and artificial light (lamps, fixtures). Color: Color has a powerful psychological impact. It can evoke emotions, create a sense of warmth or coolness, and define the style of a room. Texture: Texture refers to the surface quality of an object. It adds depth and dimension to a design and can be either visual (patterns on wallpaper) or tactile (the feel of a wool rug). Pattern: Patterns are created by repeating a design element. They add visual interest and can be used to tie together different elements in a room. The Interior Design ProcessA typical interior design project follows a structured process: Initial Consultation and Research: The designer meets with the client to understand their needs, preferences, and budget. They conduct site visits and research the project's requirements. Concept Development: The designer creates a design concept, often presented through mood boards, sketches, and 3D renderings, to convey the overall look and feel of the space. Schematic Design and Space Planning: This phase involves creating detailed floor plans and layouts, considering traffic flow, furniture placement, and functionality. Material and Furniture Selection: The designer selects all the materials, finishes, furniture, lighting, and accessories, ensuring they align with the concept and budget. Execution and Project Management: The designer oversees the implementation of the design, coordinating with contractors, suppliers, and other professionals to ensure the project is completed on time and to the highest standards. A Career in Interior DesignA career in interior design requires a unique blend of creativity, technical knowledge, and business acumen. Aspiring designers often pursue formal education, earning degrees or certifications in the field. They may specialize in residential, commercial, hospitality, or healthcare design, each with its own set of challenges and rewards. In a world where we spend more than 90% of our lives indoors, the role of the interior design company is more crucial than ever. They are the architects of our indoor lives, creating spaces that not only look beautiful but also enhance our well-being and inspire us to live, work, and thrive.

Ok thanks but would you know the casting number on the OEM exhaust manifold please ?

Sorry...Downpipe sold.

Yes, he did and on the same day you apologised - thankyou. The beauty of forums such as this compared to the social media is that information remains visible, unswamped by daily 'chaff' to refer to by new members. But that is a double-edged sword and without having the courtesy and rerspect to edit or delete your unfounded comments, they remain there in perpetuity and rare is it that anyone will scroll further down once having seen your post ! "If you haven't got money in deal I'd seriously think about MSA ceramic coated headers. I've got 6to1s on both my cars and very pleased after 10 years of running them with MSAs 2.5" aluminum, I think, to the back bumper. They have other configurations but I like the sound and backpressure of the the 6to1. It's loud but only if you chose. Stay out of it until you get away from neighbors and then who gives a flip. If the guy won't talk to you, it's not going to have a wonderful ending no matter what you pay him. Get out while you can." You suggested the cheapest mild-steel headers available on the market and have you really inspected the welding quality and the flange in particular ? A 6-1 header is not even conceived for the street but track and drag runs in order to dump as much exhaust gas as quickly as posisble.....even then Nissans' own race headers were always 2-1 and their S20 exhaust line a full twin-pipe system to the rear to improve torque for the 'little' 2.0ltr. And MSA's exhaust line in not made of aluminum lol but the same mild steel and heaven knows why they haven't proposed a resonator (not just for the noise and it IS loud) but for the engines' performance (google exhaust scavenging). You 'like' the backpressure ! Your exhaust system is totally de-restricted meaning you have an absolute minimum of restrictions to the exhaust gases with a paradoxal low exhaust-gas velocity, especially during street driving. This is losing you power, most likely between 10 and 20% - call it 15. On a stock L24 making 130 hp DIN max, adding your exhaust is in fact reducing your net power down to perhaps 110hp....it sound loud, it sounds fast but stick it on a dyno and weep ! You'd be much better off fitting MSAs 6-2 (Pacesetter), same exhaust line but having your exhaust shop fit a resonator just behind the transmission....costs a bit more but the benefits are real. That's where MSAs' technology stops and I was fitting them and also the twice-pipes kit back in the early '90s because it was all I could find...back in the day of catalogues and sending faxs to order ! :-) I chose to produce more expensive, I'll admit, but still more affordable than the parts available in Japan and still the only single stainless-steel pipe system that doesn't have an over-sized diameter (3" for a n/a engine - get outa here ! ) which are efficient for road and track use for different size engines and also with different characteristics (compression ratios, camshafts etc.....) and also different driving styles 'cos I don't believe one size fits all. https://www.roadandtrack.com/new-cars/car-technology/a14530205/what-is-exhaust-backpressure-and-why-is-it-bad-for-horsepower/ I'm not sure that you're best placed to advise anyone on exhaust choice. You told texasz to get out while you can cos it's not going to end well whatever he pays ! Perhaps you should ask him how it ended...........

Hi - I read this : "Whatever you're writing in your messages must be something he's avoiding." 1) assumption without proof that I'm avoiding him 2) Insinuation that there is a sinister reason I'm avoiding him "must be'' Any reason he would be avoiding you? 3) Insinuation that there is a sinister reason I'm avoiding him reinforced Not a good look for him if there's no good reason. 4) Negative prediction and quite frankly pointless statement - I don't ignore anybody, who would ? Help, where ? Tagging me here wouldn't if I was avoiding him here.....which I wasn't ! Why DM a guy who doesn't respond to a customer's messages? I implied DM the enquirer, in this case texasz, with your opinions w/out facts rather than imply publicly what you did - that's not helping my business nor the potentiel customers' confidence - please think. Have a great day now - it's past ! :-)

Who're you ?

If you do get the engine running well, replace all of the old fuel lines on the rail and the injectors before too much driving. I smelled gasoline on mine one day while driving and when I opened the hood a tiny stream of gasoline shot by me on to the sidewalk. They dry out and crack lengthwise. The small stuff will eat up a lot of your time but it's worth it once you're done.

Here is a way to test the function of the injectors separately from the ECU. With the ECU connector removed from the ECU, turn the key on. Then short the pins in the ECU connector from the injectors to ground with a quick tap. Each tap should produce a click frm the relevant injector. You'll need a quiet garage or a friend in the engine bay to hear them. Or a long wire.

I believe he mentioned 10 plus years.

That makes sense, I already testedt all the ECU pins and were reading correctly... The only thing left is the AFM which would also make sense why the injectors wouldnt firing. I tested each injector and they are functioning. I have stopped testing for the night because i broke a fuel line that was very old. will need to replace that before messing with the AFM. but i dont think im getting good signal from the AFM to the ecu. thank you for your help everyone.

How long has it been sitting? What's the back story?

I’ve mentioned it some many times in the past about replacing each and every connector on the EFI harness and cleaning each connection in that arena. You will be amazed at the corrosion that you find on each connector and the wire itself. I had to shorten some wire by over an inch before I could find wiring that was suitable to crimp/solder.

The engine can run off puddled fuel in the intake manifold. If the injectors were opening the engine would continue to run. cgcheen's suggestion about testing with a 9 volt battery was a good one. You can run separate jumper wires if you don't have an EV1 connector. With a 9 volt alkaline battery you don't have to worry about melting wires if you accidentally short them. You'll hear a click when you connect the 9 volts, if they're opening. Also, with 9 volts you can leave the voltage connected while you tap them. You'll have the solenoid pulling them open if you can get them to break loose. Pin 1 at the ECU is the ignition signal that the ECU uses to monitor engine RPM. It's connected to the negative terminal of the coil. It should read battery voltage with the key on. But it also needs a certain type of voltage pulse. There are things that can screw it up. You're making great progress.

I almost made a comment about AI. It's basically a better Google search. But that's about it.

I am reading through the FSM and all the materials trying to track down what i can find. Using AI is extremely helpfull as it walkthrough alot of troubleshooting and ruling things out. Right now i believe ive rules out the fuel system, the injectors are all functioning and sensors because its stopping after a running for ~9 seconds regardless of its tempature, hot or cold. The last thing for the ECU troubleshooting is the Tachometer. I am getting a signal from the coil at the tach, but i dont know if the ECU is getting that signal. That would explain after the ignition start sequence it doesnt see any RPM and doesnt tell the injectors to fire causing the engine to stop quickly every time. I am trying to find a pin that the ECU would recieve this information but cant find one.

I understand that, AI is a smorgasbord of articles massaged into one. He mentioned he was searching AI. The reason why I asked the question.

Yarb, the 1980 EFI book is the official Nissan electrical troubleshooting manual. It's basically the FSMs stripped down to the bare essentials and combined in to easy to use charts and instructions.

The most reliable source is the FSM that can be downloaded on this site

So what do you recommend? Keeping the 1.5 ohms pertronix and 1.5 ballast resistor i the circuit?

I'm reading through some stuff and looking at information the AI and it brough up the thermotime switch. it functions at start up for exactly the amount of time my engine stays working.

Besides cgsheen1's suggestion, tapping on the injector bodies will often break them free. In your case though it might take a while to get all six free. The engine will run on three cylinders. Sounds like you don't have any injectors working.

Are you saying that it still will not continue to run? That you have to do this trick over and over? That would make sense. Each "Start" squirts some fuel in to the intake manifold. The cold start system would be working corectly. Not a problem. Still sounds like your injectors are not opening. Pin 1.

1980 EFI Bible.pdf

@Toiletduck34 Where did you find this reference material?