It was doing exactly what his was doing in the video. Went out there later, and it gave a death click (dying battery) and then nothing. So, I charged the battery over night, and still nothing. I'll check some fuses tonight and a few little things, but other than that, I'm paying someoine else to do it. Daily driver, and work all the time are a no go for having time to fix ****.

 

Well I wish you were closer I would help you out but I am down in Dothan AL. If you have any questions Just let me know.

 

thanks a lot guys again, I did not replace the crank sensor yet, I towed the car to where it belongs and on Wednesday I'll replace that sensor which might be the last piece before the opti. I'll keep you guys posted and again, thanks a lot.

 

Towing mine to FTPerformance in Gardendale, Al tomorrow for several things. Oil leaks, new tips, and my running problem which I'm assuming is the opti, and that will be replaced with new plugs and wires.

 

check the grounds connecting to the neg. part of the battery terminal.. mine was corroded like **** and did this ..


it does not sound like an opti, i am not seasoned vet. but I have had three go out two in different ways.. and everytime it showed symptoms before leaving the car non roadworthy.

had it been misfiring at all in high rpms or just all the sudden? if all the sudden im hard pressed to think "OPTI" that is just the safe word for any lt1s with starting issues.

I could be wrong but I dont think I am... but hell if you have a spare opti and love working on your car, toss it on and lets find out i guess.

 

.... Mine is running UBER Rich and I'll never use MadTuner again because I'm having to source a stock tune to even get my car able to diagnose because its so rich it wont stay running.

 

Good points, I'll check that cable as well, I'll let you guys know soon as I'm heading down to work on it today and tomorrow. The last time I had a an opti issue was on a 94 Z28 and no, it dod not happen like this, this time it happened all of the sudden it doesn't start, no signs before that at all. So you're right, it could be something else the question is what.

Adam

 

I've got a short in MAF Wiring and CTS wiring. FTL.

 

Damn..hope you guys get that worked out. I'd be getting frustrated.

You could just do the OPTI delete like I did..

 

This seems to be the most bassackwards way you can go to pinpoint your problem. Hopefully all that you have tried was from a donor car and you haven't spent any money...
Just putting your finger on the Schrader valve is not going to tell you whether or not you have enough fuel to start the engine. You actually need a fuel pressure gauge and you need to fine out what your pressure is doing while the engine is running (if you can get it to run again).
Have you tried the steps to test out signal voltage from shoebox's website?
http://shbox.com/1/4th_gen_tech2.html#opti_test

 

got a quote from local shop. maybe.

 

... Trust me it's worth it.

 

Hey guys, some news maybe you can help me more now :

I replaced the opti few hours ago, it's doing the exact same thing . I'm lucky to have a donor car to use all these parts from but again it isn't the opti, so here goes another 2 hours or hard work and back bending to only find out it isn't the issue.

Hmmmmm, I'm not getting spark out of the ignition coil wire, which I replaced all these parts as I mentioned before but seems like no spark out of the ignition coil, ICM was replaced as well, checked battery cables everything is fine...the problem seems to be somewhere BEFORE the coil sends spark to the opti, what should I check??? I NEVER had a problem like this, it could be something real simple but I can't find especially after replacing every god damn piece of the ignition system undet the hood .

Help me out guys ...

Adam

 

Well, good point but if I can;t get the engine running, which is the issue here, I can't check fuel pressure, I was told that if fuel is spread out of the Schrader when ignition is turned on (Which I did few times and fuel come out of there) then engine is getting fuel, correct me if that's wrong.

I will get a fuel pressure guage tomorrow and check it when ignition is on, but I can't check it when engine is running since it doesn't start.

Please keep the comments coming, it might be just a simple thing that someone in here may end up suggesting...

Adam

 

Crap, same thing happened to my car today. Got on it hard then the engine just died and wont start, cranks, good fuel pressure, no spark. Opti prob went out as its got 111k on it, or maybe the coil.

 

Have you tried the Opti wiring harness maybe there is a break in that?

 

I replaced the opti with that wire, do you mean the harness that comes from the computer maybe?

 

that doesnt mean ****.


you need to verify your getting 40-45lbs pressure. put a gauge on it and check. for all you know your pump could be only putting out 10lbs or just enough to make it seem like your getting fuel. from the videos it doesnt even sound like the engine is even beginning to fire

 

Thanks a lot man, it's on the list to be done tomorrow. Thanks for the info.

 

sometimes the wiring harness on the opti will get corroded and need to be changed.. don't think that is it though.. have you check your grounds? check to see if its getting any power from the coil.. if it isnt the trace back further... could be a bitch of an electrical problem


I wil throw this out there, i worked on a civic si one time for about 3 weeks trying to figure out why it would not start.. the crankshaft position sensor was toast from a previous mechanic (still not sure to this day how he toasted it)