do they spray like order of spark plug fire ?? or do two of them spary at the sametime ? i would think that would spray seprate ... but mine are not .. have no idea

 

two at a time. 1&3 together and 2&4 together.

 

thanks alot that is what i thought but before i rewired it i wanted to know for sure ... the h22 is in my civic and i had the harness rewired but they messed something up in the harness somewhere because i can't get any sign of resistivty from the ecu pin out to the injector wire thanks again though

 

That's absolutely wrong. All Honda's use sequential injection, not batch fire. Injection time starts at the beginning of the intake stroke for each individual cylinder. Each injector is fired with it's own driver at a different time.

 

aren't cylinders #1&3 intake stroke at the same time? aren't cylinders #2&4 intake stroke at the same time?

 

No, they both go up and down at the same time, but when 1 is coming up it's on it's exhaust stroke and when three is going up at the same time it's on it's compression stroke. Both are coming up at the same time, but they are on opposite ends of the cycle. Same for 2 and 4.

 

i humbly bow to your superior knowledge.

 

I thought the same thing when I saw a four cylinder motor. Wondered why all the pistons weren't staggered evenly.