i change the coil
cap or rotor
it started 6 hrs ago?

 

Got fuel pressure? If not I would look at the CPS.

 

My pick is CPS..

 

i did one out of my old xj about a couple of weeks ago.

 

could it be a pick up coil?

 

Ground wire or CPS

 

its bear with no insulation but still copper color?

 

it doesn't stay running? help

 

Need some more information....

Can you get it running? If so, is it that it doesn't have an Idle?

All the minor details make the world of difference when trying to help

 

k it ran after sitting 4 a day and then i jumped in to drive and it shut off now it wont start
2 days ago there was no spark
helllllllllllllllllllllllllllllllllp pleaseeeeeeee

 

is it possible its a tps or o2 sensore?

 

I was going to suggest maybe a TPS if it would run and just not hold an idle.

Before you go throwing parts at it.....test the sensor...can be done fairly easy on those ole renix motors with a simple multimeter.

I don't recall the readings offhand that you're looking for, but i'm sure somebody on here will post them.

 

Ask and ye shall recieve. Here are the test procedures for the CPS.

Test#1 - Get a volt/ohm meter and set it to read 0 - 500 ohms. Unplug the cps and measure across the CPS connector's A & B leads. Your meter should show a CPS resistance of between 125 - 275 ohms. If it's out of that range by much; replace it. (* - Note: HO engines are measured from the B & C connectors and should have near zero ohms.)

Test#2 - You'll need a friend to help ya with this one.
Set your volt/ohm meter to read 0 - 5 AC volts or the closest AC Volts scale your meter has to this range. Measure across the CPS leads for voltage generated as your friend cranks the engine. (The engine can't fire up without the CPS connected but watch for moving parts just the same!) The meter should show .5 - .8 VAC when cranking. (That's between 1/2 and 1 volt AC.) If it's below .5vac, replace it.

Desperate last ditch tip to get home or a few more miles from a failing CPS: - Other than the unplug/replug trick... MJR passed on a trick of using a flat bar and a hammer to 'adjust' the CPS by smacking the CPS bracket and forcing a weak CPS just a tad closer to the flywheel. This lets a weak CPS get a stronger pulse and hopefully generate enough voltage to feed a good signal to the computer again. WARNING! - If ya smack it too hard... it'll go in too far and the flywheel will eat the CPS! Start walking.

Either way, if it fails ANY of the tests... you should replace it and save your self some major pain later. If not, at least carry a spare CPS but be aware that it's a royal pain in the butt to change on a cold motor and ya really don't wanna do it at night, on the trail and with a hot motor if ya can help it!

 

t hanks every 1 new pics tonight 4 ya

 

so it sounds like cps