94toy4x4fever

Were about is the engine ground at on a 22re? I hvae check engine code 25! So Im starting with the easy stuff first! So if you know were the engine ground it please let me know! Thanks, 94toy4x4fever

scuba

Intake mani
or lower driver side engine block, drive side fender as well...

94toy4x4fever

ok forget about the ground or code 25! I read the flashes wrong! Its code 52! Whitch is the knock sensor. Is this sensor right close to the oil filter on a 22re? I know how to test it just not to sure on where to find it! Thanks guys bear with me here

scuba

"22re + knock sensor"

Id tell ya if I was sure of myself...

abecedarian

so you have an oscilloscope and the test procedure for the knock sensor?
Please share 'cause most of us don't know the procedure much less have the 'scope.

94toy4x4fever

Yeah I do know! Remove knock sensor. The using an ohm meter make sure there is no continuity between the terminal and the body of the sensor. If there is replace the sensor! How do you like them apples! And yes I have know what a oscilloscope is and have used one!

abecedarian

impressive
but you do know how the knock sensor works, correct?

94toy4x4fever

yes I do. When the engine has a knock ping ect... it retards timing.

abecedarian

so you know how the system works. fine... and I'll give you that.
but how does the knock sensor itself work... that is the question.

94toy4x4fever

A knock sensor generates a voltage when it is "shocked" by knock ping ect... What else more do you need to know. Or mabye you know a little more than I do. Seems to me like you know everthing just my 2 cents

94toy4x4fever

I dont mean to be a A$$. There is a lot of knowledge here and I respect alot of people here. But The original question was were is the sensor.

abecedarian

given your description "a knock sensor generates a voltage then it is 'shocked' by knock, ping etc.", you can't determine if it is good or bad by, as you said: "using an ohm meter make sure there is no continuity between the terminal and the body of the sensor"

one with some background in electronics would tell you that your 'test' procedure is analogous to testing a microphone for frequency response by measuring its resistance.... and they won't tell you that because it is wrong...
and why I asked if you had an oscilloscope.

abecedarian

And the original question was:
"Were about is the engine ground at on a 22re? I hvae check engine code 25! So Im starting with the easy stuff first! So if you know were the engine ground it please let me know! Thanks, 94toy4x4fever"

abecedarian

If I make a mistake, I'll admit it right off, so I expect others to respond in kind.

94toy4x4fever

haha well I have a little electrical under my belt also

abecedarian

Don't admit that to others. It won't help your argument.

94toy4x4fever

So now we all have had our little schooling in knock sensors we know how they work!

94toy4x4fever

as you read a little im 22 and becoming a electrican just starting out.

abecedarian

And... I guess you didn't read I'm 38 and have designed and/or have modified electrical systems on RV's between 1993 to 1995.... I have worked on and modified electrical systems for 'cell-phone' and other 'wireless' towers from 1995 and up to and including today- I'll be boarding a a plane in about 8 hours to take me to work on several 'mediaflo' sites.
A few years ago IBEW made me an 'apprentice' and 2 weeks later awarded me 'journeyman' status. I quit the union and they keep sending me shiznit to get me to re-associate myself with them.
...and you haven't even mentioned "piezo-electric" yet.

a4runnerfreak

Damn Abe, 38???? I thought you where closer to my age..34/35......