MY CAR WONT START

[warnerTA]

i just replaced my optispark and i am almost ready to give up on this car, it will not start now, it will just sit there and turn over, and give off a little tiny backfire once in a while (while cranking over) but just wont start, any advice anyone?

thanks guys,

[Z28pr0jekt]

Was it a new opti?

[warnerTA]

yeah brand new

[Z28pr0jekt]

You need to make sure you indexed it correctly, it is hard to do wrong but it is still very possible...

And for one, did you check to see if you are getting spark?

[warnerTA]

what does indext it correctly? lol dont know much about them

[Z28pr0jekt]

if you look at the back side of the opti (the side that faces the motor) there is a specific design to the splines and you need to make sure it matches up when it slides into the motor...

I'm too tired to search a pic lol hopefully someone else will chime in

[warnerTA]

oh alright.. thank you man i think im just going to take it to a mechanic and tell him to fix it for me, but thank you

[warnerTA]

alright so i took it ALL back together last night....... and made sure it was on their right...., and i put it all back together.. and it still wont start..? damn car

[JPack]

obvious things, Are you 100% positive the spark plug wires are on it correct? Check them and then recheck them. Also, I have seen the opti harness bad. Check the wires for continuity in the harness. Then check from the pcm harness to the plug.

[warnerTA]

i have checked everything and anything.. i dunno what to say.

[IronOutlaw]

How did the car run before?
Have you checked the coil?
You didnt unhook any ground wires in the install did you?

[warnerTA]

yeah i did unhook ground wires. i think i got them in the right place.. anyone have a pic of the drivers side ground wires? and it is a brand new msd coil

[Jerry Clayton]

Two things you need---fuel and spark--do you have fuel pressure??
Do you have spark??
will it light off on starting fluid??

[95LT1Z28]

Having the same problem after installing my opti! Any help would be greatly appreciated

[warnerTA]

it just sits there and turns over? no idea what the dirt it is..,and also its a brand new fuel pump, its got good fuel pressure

[IronOutlaw]

How many miles on the motor? Did it run before the opti.
Could have jumped timing but is unlikely, especially if the car ran before the opti swap

[warnerTA]

yeah it ran fine before the opti swap..(except for the opti going out when it reached to operating temp) other than that it worked fine

[warnerTA]

and it has 143xxx on the motor

[95greenZ]

Here's a pic of the coil, the ground wires go to the stud to the right of the ICM and coil. Its kinda hard to see but if you look close you can see them.
http://shbox.com/1/coil_loc.jpg

And here's a pic showing the splined opti.
http://shbox.com/1/93-94_opti.jpg

[95greenZ]

Where did you get the new opti from? And like was said before have you checked the opti harness? Is the coil wire hooked back up? Have you actually checked fuel pressure or you just assuming its good because of the new pump? You really need to give us alot more info so we can help you.

[warnerTA]

sorry guys for the lack of info, i did test the fuel pressure, and it is really strong and good, and everything was hooked up good,i just think i indexed it wrong. thank you for the pics!!!! they are a big help man thank you!!!

[95greenZ]

no problem man hope you get it running, keep us updated good luck. You working on it right now.

[warnerTA]

i actually have to go help my friend supercharge his z24 :) but i will work on it tonight tell my fingers fall off :P again thank you man, i will keep you posted :D i have the crank pulley off and the water pump so it should not take too long :)

[warnerTA]

alright so i worked on it, and i cannot get it to line up where it is supposed to go? is their a trick?????????????

[warnerTA]

anyone?

[Jerry Clayton]

So do you mean you put it on without it being properly indexed?

[warnerTA]

yes, i need to know some kind of trick,? i know where it is supposed to go, i just cant get it to go their, i am sick of taking the water pump off and on off and on, i dunno how to get it on their right

[95greenZ]

I haven't never worked on a slined opti so I can't give any tips there. But leave the water pump off until you get it running just don't let it run long. Maybe try your old opti too, to rule out if the new one is dead.

[warnerTA]

alright thanks man, i am almost going to give up on this thing!!!! its not that fun on the side of the street in 10 degree weather!!! lol

[Jerry Clayton]

does the back of your opti look like the picture in post 19 or does it have a round thing with 3 different shaped holes?

[warnerTA]

it is simmaler to that one it has like almost a tack weld over 2 of the rivits, i am thinking of making some kind of like "bar" with the "STAR" end like that would go onto the camshaft end. simaler to what comes off the opti, and get that on there and then go from there, not sure if that would work or not

[Jerry Clayton]

so it is a splined shaft??? and it is the same as the old one?

[95greenZ]

Sounds like you got a vented opti.

[Jerry Clayton]

thats a pic like the one off the engine that we're machining and stroking

[Jerry Clayton]

95 greenz where in Kentucky?

[warnerTA]

wait wati wait i got the wrong opti?????????

i have pics on my facebook but i dunno how to get them on here..

[warnerTA]

and no the back of the opti did not look like that.

[Jerry Clayton]

those car people are always changing things----when you get the right one let us know

[95greenZ]

So your new one doens't look like that one? But what about your old opti? Someone might have converted to a vented opti.

[warnerTA]

nope the old opti was stock

[95greenZ]

So your new opti is the exact same as the old opti?

[warnerTA]

yes new opti ecaxt same

[95greenZ]

Have you tried the old opti yet to see if it would start? Do you have a camera and take some pics to post up.

[warnerTA]

i have tried this a thousand times, it will not go on there right. i dont have the money to pay a mechanic to do it. i think i might have to sell it!!!!!!!!!!!!!!! i cant get it. me and a friend have taken it off and put it back on a thousand times.., we cant get it. anyone local that could come for say 50 bucks? and like i will buy the gas too!! Hawarden IA.? anyone? sounds despirate but i cant get it, and dont wanna sell the car.,

thanks.