How Does a Hotwire System time itself?

I'm confused.com. How Does a Hotwire System time itself with out a crank position sensor?

Bulk injector firing?

If so someone explain this to me....

Max

I've found this site useful. might be of some help to ya;

Rover 14CUX Hot Wire Mass Flow EFI: Service and Troubleshooting

its not timed just alters amount of fuel to suit revs

jamesmartin said:

its not timed just alters amount of fuel to suit revs

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Thanks, got that far, but what bugging me is:

How does it know when to squirt fuel in to each cylinder, far as I can tell there is only 1 wire going to the coil...?

it doesnt it is not timed it relies on the fact that valves open shut that fast that it dosent matter ,it just squirts fuel at valve

jamesmartin said:

it doesnt it is not timed it relies on the fact that valves open shut that fast that it dosent matter ,it just squirts fuel at valve

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Bit like glory stroke eh! Where did you read that then guru??

would that also be your first stroke too ,used to build alot of them

pornstarmax said:

I'm confused.com. How Does a Hotwire System time itself with out a crank position sensor?

Bulk injector firing?

If so someone explain this to me....

Max

Click to expand...

fires one bank at a time, dependant on coil signal to ecu for frequency

Basically it wastes fuel like there's no tomorrow.

Although there is a conspiracy theory!

DOES the system inject 1/4 of the amount of fuel each time, so by the time that the 4th squirt comes along and the valve actually opens there is the correct amount of fuel there, thus meaning the mixture is correct and it doesn't waste any.

If it fires the correct amount each time and wastes the other three then that would explain the general rich running.

I don't know, never worked it out.

But yeah it just bank fires in time with a pulse from the coil, and just hopes to find an open valve followed by a spark some time

cant really waste it ,though not as good as a timed system when engines running its like squirting fuel into constant stream of air entering valve, at 2000 revs alves opening a 1000 times a minuet

Good feedback!!!!

Its pretty much as I thought, just seems a little "wrong".....

jamesmartin said:

would that also be your first stroke too ,used to build alot of them

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Now steady on guru, you've cracked a funny there. :hysterically_laughi:hysterically_laughi

took you long enough

jamesmartin said:

took you long enough

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But I'm not on here that often mate, got a business to run, how do you cope

inbetween jobs and when having tea which is most of the day

jamesmartin said:

inbetween jobs and when having tea which is most of the day

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Jammy bugger

jamesmartin said:

inbetween jobs and when having tea which is most of the day

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Going on the basis that you have 1 cup of tea per post, and you have been on the forum for exactly 10 months, you would have had 27.97 cups of tea per day.

That's effectively 28 but with a little bit of tea left in the tea bag.

I know it's a generalisation because I don't know what day you joined the forum, but basically what I'm saying is does your milkman have a Rolls Royce or Bentley?


Cheers

Mr Noisy said:

Going on the basis that you have 1 cup of tea per post, and you have been on the forum for exactly 10 months, you would have had 27.97 cups of tea per day.

That's effectively 28 but with a little bit of tea left in the tea bag.

I know it's a generalisation because I don't know what day you joined the forum, but basically what I'm saying is does your milkman have a Rolls Royce or Bentley?


Cheers

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Mr Noisy you are seriously

thats the flaw 3 or more posts per mug ,and tate and lyle do fairly well too

jamesmartin said:

thats the flaw 3 or more posts per mug ,and tate and lyle do fairly well too

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Tis time to come clean and fess up mate.