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7

tl dr - To directly answer the question, SeaFoam is a pure petroleum product. If an alternative product is made up the same as Seafoam, then I'd think it would work just fine. If its makeup is not similar, you probably won't see the same results. Below is what you are looking for and a recipe for making your own substitute. I found this answer for a SeaFoam ...


5

Those are metric screw dimensions. M10 means a 10 millimeter outer diameter for the bolt or whatever piece it is; M12 means 12 millimeters. The part after the 'x' is the pitch -- how many threads there are per some unit of length. To figure out which you have, you can measure the existing part with calipers and a thread gauge. You might also try calling ...


5

The injector has a plunger/pintle which is controlled by an electromagnet. The humming you heard is from that. The plunger/pintle has a spring which pushes back against the electromagnet so when the power is shut off, the plunger will close and stop the flow of fuel. This causes the hum. Here is an example of how an injector is built: When the power is ...


5

Direct Injection has a lot of advantages over the MPFI or port injection and its the way of the future. It improves mileage through a stratified charge engine process(basically staying as close to the stochiometric ratio as possible this achieving better burn. Lower emissions. Prevents engine knocking/detonation. Better control of the engine since before ...


4

Yes, it will probably be necessary to fix the problem in order to pass emissions requirements. The secondary air injection pump on the Beetle is apparently used to accelerate the transition from cold start to hot catalytic converter operation. Without this system, it will take longer for the catalytic converter to reach operating temperature. The ...


4

If "injector cleaning" products helped but only lasted for one tank, I would try spraying Seafoam directly in at the throttle plate rather than putting an additive in your fuel. This should be a lot more effective at cleaning the injectors. If that doesn't help, my best guess would be that the vibration is from unequal power from one or more of the ...


3

Here are the instructions I found from this document. It looks as though you have to program the pump and injectors into the PCU using some type interfacing tool. I would bet this is probably only available through the dealer, though I could be wrong. Check with a local shop, but would bet this is not something you can do at home. The document has several ...


3

Sounds like the Idle Air Control Valve and the Intake Manifold must be removed and cleaned. The vibration is worse when in gear than in neutral In gear there is a much greater load on the engine. Power is being transfered to the transmission and then to the wheels. This is going to cause the idle to drop a bit and this is where you'd feel the most ...


3

The quick answer is - Yes, you will need a tune after installing larger injectors in your stroked 454. I was considering a big block swap into my RV so I've done a bit of research about tuning solutions. I was primarily focused on swapping in the L21, so I can't speak 100% to the differences between the Mark IV and Gen VI motors. This is what I do ...


3

I'm sure there are a plethora of custom programmers for the suburban platform. However if you're making such extensive modifications, you can probably look at some standalone solutions, like an Accel DFI or Haltech setup. Tuners typically dial in a baseline map and strap your vehicle to a dyno where they adjust fuel/timing curves according to wideband O2 ...


3

Your post raises several possible issues that you could eliminate to start with. Firstly if it is still on an incline I suggest you push or tow it to flat ground. It will help rule out fuel starvation and make it easier and safer to work on. Second i would drain the fuel tank and put fresh fuel in it. From there you can try starting it a few times. ...


2

The Megasquirt 3 is the way to go giving you total control of your new setup. The EFI Analytics software, Tuner Studio and Mega Log Viewer make tuning easy but has a feature set that is up to par with pro tuning setups. The VE Analyzer Live will also help dial in various areas of your tune as will the Mega Log Viewer Scatter Plots. I would bet your new ...


2

One option you may want to consider is switching to a MegaSquirt fuel injection computer. It would be the pain of a fuel injection computer replacement, but they seem to be rather adjustable and configurable, if you are willing to go through the effort. We have had a couple of presentations at a local computer club from a guy who converted his 60s era ...


2

I had a Ford Probe with a 2.2L Mazda engine with nearly the same issue. I did everything you said, multiple spark plug changes, fuel cleaners, sea foam, etc. etc. The problem was the spark plug wires. They looked perfectly fine, but when I replaced them as a last resort the whole issue cleared right up. I later noted a small crack in one where the wire was ...


2

You replaced the engine mounts? I would guess that since you had to change the engine mounts that there is a good chance that the tranny mounts may need to be changed as well...what is the drivetrain assembly like in that car since it is fwd, sometimes if the driveshaft in a rwd car is unbalanced it will cause the car to shake


2

Great question. I am making an educated guess here, so don't quote me in court;) Because piggyback chips interfere with your car's various inputs I would assume that you are correct and that your MPG score will be inaccurate as a result. I can't say by how much though. These chips usually give an MPG boost of around 10%, so I would imagine your true MPG ...


2

Both engines you mentioned have a supercharger and turbo combination. The performance difference is achieved by increasing the boost pressure to the engine. While this might be done only by using different ECU maps for small performance differences, the big performance differences usually require higher capacity parts as well, especially for the turbos, ...


2

I'm betting your Corsa is Drive-By-Wire (DBW), meaning, there isn't a direct connection between you and the throttle. If so, the gas pedal rheostat is probably telling the computer you are pressing it, causing the throttle to go up and in some cases not respond at all. You could possibly test the gas pedal by unplugging it and checking for even/smooth ...


2

With the car off, go under the hood and look near your air filter housing. Follow the large hose that it is connected to until you see the throttle body. Try manually moving the throttle lever. This is what your gas peddle would do anyways. Also try using two people, one to be in the car pressing the gas peddle, and one to see it the lever rotates at all. ...


2

On a four cycle (four stroke) engine with sequential port fuel injection, the fuel injectors fire at 1/2 the rate of the RPM (ie: 3000 rpm engine speed equates to 1500 injector pulses per minute), which just happens to be the same speed at which the spark plug for a single cylinder fires. Four factors allow the injector to operate at this speed. The first ...


2

Are you able to ask the previous owner for any history that could point you in the direction of the fault? This needs going back to basics. Check that you actually have petrol in the tank, could be anything in there, check for water or diesel or any other contamination. Don't go by the fuel gauge for tank level, it might be mis-reading. Take out the plugs, ...


2

Just replace the injector plug. I believe it should look like this: You can order it from RockAuto.com for ~$6 (I'm sure you can get it from many other places as well. I would soldier this in place using heat shrink to seal them up. As far as the gaskets go, your vehicle uses the gaskets with the rubber-ish sealing portion (don't know what they are made ...


2

If you cannot siphon/extract the old fuel, it is better to dilute the old fuel with fresh fuel to reduce the likelihood of clogging up the fuel filter when you fire it up for the first time.


1

When you reset the lights, it takes a few miles (and certain conditions) for it to get back to a ready state. When it gets there, if it isn't fixed, the lights will pop again. I'm wondering if you have a leak in your intake tract somewhere. Seems you were thinking that way when you replaced the intake gaskets. I'd look at the intake tube between your MAF and ...


1

Here is an image with the different types of injectors. It looks as though the brown top injectors you are talking about are 36 lb injectors, meaning they can flow 36 lbs of fuel per hour at the stock fuel pressure. I don't know what the fuel pressure these were rated at for 36#'s, but if you have lower or higher fuel pressure in your vehicle, this will ...


1

As Brian Knoblauch stated, fuel injection systems normally shut off the fuel delivery completely when the engine is in an "overrun" state, i.e. when you get off the accelerator completely with the vehicle in gear and the RPMs sufficiently high. In this sense, you can't be too lean in overrun--it's perfectly acceptable to have no injection at all. As for ...


1

Throttle never reads 0% as the throttle plate angle is around 25~30 degree's. RPM should not 'hang' on a fuel injected bike, you may have leaking injectors or fuel pump regulator may not be working properly? Your much more likely to get after-fire in exhaust system on over run. What year is the 600? I know early ones had some issues but all the newer ...


1

With your added information, this sounds like there is a definite problem with the transmission. Your description leads me to believe it probably has something to do with the clutches being worn out in conjunction with low line pressures (or some such). I would definitely believe the transmission is due for an overhaul. If you pull the dipstick, does the ...


1

Your clutch slips probably, soon or later you won´t be able to accelerate anymore, just to be sure I understood it like that, you step on gas pedal, rpm´s get high, no acceleration, then when you step out a bit it catches and car starts to accelerate again, right?


1

The way I've done it is to remove the injectors and have them flow tested. Also you should remove the valve covers and run the engine to check for other fuel leaks.



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