HHO/MPG Theory Debate

[Helz_McFugly]

My check engine light came on this morning for about 15 miles then went off so the Volo must have sent a reading my ECM didnt like there for a minute.

[biggy boy]

What no code reader?

[Helz_McFugly]

nope, never got one. Ive always used my friends who owns a mechanic garage. Ill slip by there and see what it says

[richard_lyew]

My check engine light came on this morning for about 15 miles then went off so the Volo must have sent a reading my ECM didnt like there for a minute.

i used to have the same problem until i started using a AFC, now the AFC keeps the ECU happy so no check engine lights. now on the topic, i had to change my timing belt 1 time because it burst, i didnt check it when i got the car and i didnt know it needed changing. i did my timing by my owner's manual, it simply said turn the 3 main pulleys until all the arrows are pointing up, so thats what i did. first i turn the crank shaft pulley until the little arrow points up and did the same for the other 2 pulleys, then slip the belt on, adjust tension and start it, no problem. i dont know if its that simple for all or most other cars but its that easy for Subaru.

[biggy boy]

I believe for most vehicles the first cylinder has to be at top dead center on the compression stroke also.
I think it is possible to have the marking dot/slash on the crank facing up, aligned but still not have the TDC on the first cylinder? need to be careful.