Yes you can install the opti wrong. I did it, twice! The pin will go in the clover leaf shaped indentation to the left of the pin hole. My car would pop but not run at all. I took the opti off and saw a mark where the pin was hitting. Put it back on and tried to start it (without putting the whole thing back together) and same problem .. Took it off and it had slipped in the wrong place again. I rotated the crank until the pin was at 12 oclock where I could really see everything, and got it to go on straight. AFter that the car ran fine.

Put a timing light on the #1 cylinder and see if your timing is off. (This is how I found my problem) My timing was off about 90 deg! If it is not off, this is not your problem. Put the light on each wire to see if it is firing. This would rule out the connection to the opti, leaving only a bad connection at the plug, or bad plug.

Tim

 

Tim, he's running a '94 it goes on differently than ours, but yes, you can install the opti wrong with a '94 also. Re-read Shoebox's post.

 

TTT. for ya Jason: Give me a yell. When you get a chance. Mike.......

 

any false knock when the car is reved up?
usually you get the most false knock under load (ie in gear and driving)

 

ttt

 

double check your plugs...make sure they are the right ones,

 

tuning, plugs, wires, can all have a major affect on how it uns but from what your describing, none of them will do that. If you are positive that you opti timing is correct (I was not aware it could go in wrong either), then I think you have a problem in the top end. Valve spring problem or a rocker adjustment problem. How did you adjust the rockers?

 

so it is possible to have the non vented opti installed incorrectly.

I adjusted the rockers cold and hot. Hot I backed them off till it ticked, then tightend it down till it stopped, zero lash, and put a 1/3 turn preload on it, it's the same way I do it on all my cars, friends cars, and all the cars at work.

I think I am going to take the MSD coil off it tonight and put a stock one on.

J

 

This kind of sounds like a problem I was having. My car would run fine up till about 3500 rpm then cut out violently. When I scanned my car the pass. side O2 was reading absolutly nothing. I thought my computer was burnt up, I checked every wire for continuity and everything checked out fine. Even with the O2 sensor extensions on. Right when I was going to buy a ECM I changed my long tube headers to shortys and my car ran fine. I turns out my problem was the O2 sensor extenstion. If you can, scan the car. This was an easy fix that gave me a LOT of trouble.

 

This sounds like a possibilty. He has 02 extensions, obviously he has long tubes, and the car does cut out violently like you said. I will put the scanner on it this week and check, but at WOT, I didn't think the 02's did anything. I appreciate any idea's, it gives me more things to check and a better possibilty of finding the problem.

thanks
Jason

 

well the car still isn't running right, i installed a different opti, from a friend, and the car still does the exact same thing. i don't think i installed it wrong again, liljayv10 wasn't there when i put it on. we talked about the timing chain being off, but me, lil jay, and my father in law all looked at it, and we all thought it lined up, we turned the engine over twice to make sure the dots lined up when it came back around. i am about out of answers, that's not true, i am out. I thought about getting a tune for it, thought maybe that might fix it, but there a lot of people out there running a stock tune with this cam and bigger cams for that matter. i know it was asked before, but how can the opti be installed wrong? and wouldn't it make it run bad at idle? That's another thing that i was wondering about, wouldn't the car run bad all the time of the timing chain was off a tooth? The car idles great, and drives great till you step on it. We checked the fuel pressure and it was 45 psi. Any other ideas?
Thanks
(LilJayV10 posting under meangrn)
Jason

 

I still say check the coil. I may be wrong. But i thought Jason said something about you had a aftermarket coil. would not hurt to check the ignition modual. If they are good check the grounds. At the same time. Also did you get fuel pressure readings at wot.If so what were they? Pump could still be laying down under a load.If you talk to Jason tell him to give me a call. I have been trying to get with him for past couple weeks but have not heard from him. Well Good Luck. Post back what you find out. Mike........................

 

Mike I got your message, i am going to check on those parts for you. i broke my phone a few days ago, and can't get any of my phone numbers right now, but i'll give you a call tomorrow afternoon mid morning.

I put a different coil/module on his T/A but didn't make any difference. It also had a hypertech tune on it and I told him to put the stock tune back on it, he thought the only thing the hypertech did was change his gear ratio's and his shift points. Personally I don't know. I am grasping for straws at the moment. I did think about a ground problem also, that will be another thing to check.

Jason

 

What makes you positive your valves are adjusted correctly? What method did you use to adjust them?

I can tell you that I tried to adjust mine with the 0 lash plus 1/8 turn method before starting the engine. The valves were too tight and it fell on it's face above 3000 RPM's...Just as you're describing. The best way to adjust the rockers is with the engine RUNNING!

Frank

 

Sounds good Jason: I pick mine up tomrrow from the shop.Should look like new again. I hope. If he has the tune set o that thing try removing it. then after that rest the pcm. Then run it and see what happens.Also the gears and shift part of it should not bother it.I would check the grounds as well.What was the fuel pressure at Wot.Also this is a long shot and may not even make any differance on his year of car. But my 89 IROC. did that very same thing for the longest time looked for it everywhere ended up being the oil sending unit. It never leaked nor did it show bad pressure on the gagues. but replaced it and miss and total stumble from 3k up was gone. Go figure that one.Well good luck. Talk to ya later. Mike.............