Sudden unexpected acceleration -HELP

[CharlieS]

Will try to post video. I forgot to add 1fz-fe with auto gas added. This issue occurs on both gas and petrol.

Auto gas and petrol... I am not familiar. Petrol is what we call gas, some call benzine. Is auto gas the same as propane, LP? If so, we don't get this here, but it makes me suspicious that this parallel LPG fueling system may be a factor...

 

[DIRTBIKEUSA]

You have a massive vacuum leak. I can hear it sucking in the video. Brake Booster vac line unplugged? Try pinching off the large vac lines and see if it goes away.

 

[Marvelicious]

You have a massive vacuum leak. I can hear it sucking in the video. Brake Booster vac line unplugged? Try pinching off the large vac lines and see if it goes away.

Agreed. I'm not familiar enough with lpg systems to really know how that could work, but my guess is that system is providing the fuel to match the air leak somehow.

 

[DivByZero]

Will try to post video. I forgot to add 1fz-fe with auto gas added. This issue occurs on both gas and petrol.

Ahh, missed you were an Aussie too. For everyone stateside, gas = LPG = propane. And in your terms, petrol = gas (seriously, why do you call it gas? It's obviously a liquid).

The LPG thing is definitely a factor here. It answers the mystery of how you're getting flooded with air and fuel simultaneously.

 

[earlsquirelson]

Ahh, missed you were an Aussie too. For everyone stateside, gas = LPG = propane. And in your terms, petrol = gas (seriously, why do you call it gas? It's obviously a liquid).

The LPG thing is definitely a factor here. It answers the mystery of how you're getting flooded with air and fuel simultaneously.

Yes agreed, thanks all. I reckon it’s going to be a tow truck to the mechanic as I also have no idea when it comes to lpg.

It has to be a combination of issues as everyone has said they are as stumped as I am. A very unusual situation indeed.

 

[Marvelicious]

seriously, why do you call it gas? It's obviously a liquid

There's an answer on wikipedia, and it's every bit as stupid as you should expect.

Yes agreed, thanks all. I reckon it’s going to be a tow truck to the mechanic as I also have no idea when it comes to lpg.

It has to be a combination of issues as everyone has said they are as stumped as I am. A very unusual situation indeed.

I would try turning off the gas bottle and running it on petrol only. Should at least be able to find the air leak that way. Depending on how the lpg system works, that might solve the whole thing.

 

[IdahoDoug]

Oh for crying out loud. Seriously, you "forgot" to mention it's been modified to run on LPG gas?! Now I am starting to think you're just a troll having your version of fun since you're new. A bit like saying "My exhaust is loud but I've checked all the connections and everything's tight. What could it be?" And then 2 pages later after people are honestly trying to help mentioning you'd cut the exhaust off 3 feet from the engine. Seriously? Done here.