Unknown problem after some work i’ve done, please help

Check for vacuum leak.

 

Sounds like a gen3 1.8L misfire, usually caused by a leaking head gasket.

Given you tore down the egr, check all vacuum and pcv hoses.

 

All this information but no miles driven? Oh well, off to another thread.

 

What is “”LPG”, when did its installation occur, and what did that entail?

video sounds like head gasket failure. What is the extra hose apparatus for? Maybe: Liquid Petroleum Gas??

 

LPG as an engine fuel is primarily propane which is more common in cars overseas like the op. He said the problem was there before the lpg conversion.

 

Probably liquid propane gas; it's a popular conversion in countries that has no oil. It's cheaper than gasoline over there.

The problem existed before the conversion; but rather than fix the problem first - they converted it. So now the question is the conversion tuned properly or is it adding to the existing problem or did it get worse on it's own???
Don't know how they were going to properly tune and balance the propane injectors with a potential head gasket issue; but that's just me.......

 

It's a Prius forklift. This is what forklifts run when they're inside a lot LPG liquid propane gas conversions they can be problematic sounds like he's got a head gasket leak and this expensive conversion holy cow amazing.

 

The old original Toyota 3r and 8R were originally forklift motors for Toyota forklifts then they were shoved in cars to be sent in the states in like 70 for the first gas crunch so they took the LP gas setup off a lot of these and made them gasoline for federal specification in a little car called a Celica. Funny thing is they never ran really well okay not really well

 

In many countries like the op lives, LPG can be 40-50% the price of gasoline, primarily because of tax reduction on LPG. They often have LPG stations everywhere. In the US LPG has no price advantage or wide availability.

 

LPG is used mainly for cooking over there; not hit with road or infrastructure taxes.
I believe the state of Utah, used to do a lot of these conversions - until it wasn't economically feasible any more. It's less energy dense than gasoline; so half the range of gas powered cars.

 

Oh yeah we have these cars in North Carolina as government cars not all of them but a bunch of them no Prius but they have Prius but just in standard gas trim a lot of Chevrolets and some trucks they got with the LPG conversions and it's a bunch of extra parts bolted up and all that business so I guess troubleshooting can change a little bit.

 

Per afdc.enery. gov

• Propane contains 10-15% less energy per gallon than gasoline. This means a vehicle might see a 5-10% reduction in mpg when switching from gasoline to propane.
  
  Octane Rating: Propane has a higher octane rating (104-112) than gasoline (87-92), which can allow for more aggressive [optimized] engine tuning and potentially improve fuel economy.

A converted vehicle is usually setup for bi-fuel meaning it can switch between LPG and gasoline.

A Prius with its knock sensor will take advantage of higher octane. The value of higher octane gasoline in the US is negated by the price of high octane fuel.

Here is a first hand Dominican Republic non-optimized experience:

 

Yep; and no talk about failing to pay their fair share of road and infrastructure taxes back then either!!!!!

 

we're fascinated by unusual (over here) energy sources

 

There is nothing calibrated on the EGR valve. You can take it apart and put it back together again with no problems. You just need to make sure the valve is in the closed position when you put it back together.

You are probably thinking of the position sensor on the throttle body. That sensor is factory calibrated and sealed. You do not want to take that sensor apart.

 

Yes run the EGR screw down to asssemble. Or break shiet.