Please help! SR wont start due to CAS Timing

[vboy720]

Ok, so I attempted to do my Crank Angle Sensor Timing, since i had removed it, and needed to do this anyway. I followed the guide from this web page http://www.frsport.com/sr20det-crank-angle-sensor-cas-timing-guide-p-648.html and im %99.8 that I did the whole thing correctly.

On a side note, the reason why I was messing with this stuff, is because my car recently started misfiring. I pulled my spark plugs, and saw how grey and black they where (fouled?), and determined that was where my problem was happening. I cannot replace the plugs until tomarrow because part #3330 was special ordered.

Before doing the CAS timing, my car started, but just sounded like a wrx. But now after the Cas timing, my car just wont start :wtf: . Any ideas? Im really starting shit in my pants :ughd: because i don't know what to do and have tried searching all over here, and google. Please, any help would be appreciated.


Car info: 91 fastback w/ redtop sr20det, stock everything, except exhaust

[vboy720]

Also, is there a way to check and see if my Crank Angle Sensor is working? Can i stick a screw driver into the coilpacks and crank the engine to see if theres spark? Just Curious because im trippin out, and this is my daily driver.

[rican_nick]

hmm.. yes, you can jump the coil pack with a screw driver and check for spark.. I would check all 4.

if you have a harbor freight in town this would be a cheap investment to check the spark from the coil packs.

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=4424

before going crazy though i would DEFINITELY put the new plugs in. I had a coil pack explode (yes exploded and glued itself in my head).. i unfortunately had to drive a few miles on 3 cylinders because i had to get it home.

the next day i replaced the coil pack after prying the whore out and even though i had full spark it would not start. I cleaned my plugs (as i was in the same situation my plugs were not in stock anywhere) and it did not help. I slapped fresh plugs properly gapped and she went back to normal.

so use the KISS method. Test the Coilpacks and replace those plugs b4 going to crazy on replacing things.

good luck bro.

[vboy720]

Thank bro, thats what i needed to hear. Anyone else have somethin similar happen?

[fliprayzin240sx]

Play with the CAS a bit and try starting it while moving it around. Dont pull it, just turn it max back and forth, see if the car atleast starts. Once it starts, bust out the timing gun. Shoot the crank and line up the needle to the 2nd mark on the right.

[vboy720]

Update*

So i put the new NGK Part#3330's in, and still no luck.... I tested the coilpacks by sticking a screw driver in them, and it sparked. I also tried playing with the CAS while trying to start the engine but no luck. I dont know what else to do at this point. Can anyone please help me, or point me in the right direction. Im about to start over with the CAS timing again, but if anyone else has a suggestion i would really appreciate it. Just sucks because this is my daily driver, and im missing days at work now...

[nassin31spr]

When you have messed with the timing its a pita to get it back right. I rebuilt a motor and when we were trying to set the timing we did it by the book, set tdc, set the marks on the cas and nothing 3 times. I finally realized that with the way the chain is that you can still be off. Pull the cas move 1 tooth at a time and you will find it. Patience and persistence is the key.

[HalveBlue]

Setting the CAS is a pain in the ass.

Search around on zilvia, there are a ton of threads that have a step by step guide on setting your timing.

As nassin already mentioned, the CAS is real finicky. Even when you think you're dead on you're actually off by a tooth or two and the engine will die on you. If this happens, very slightly rotate the CAS gear and slide the CAS back in. Eventually you'll get it.

But yeah, HUGE pain in the ass.

[nassin31spr]

Good luck with it and post up your progress.

[kevtrinh]

check your fuel pressure as well... i believe its 43 or 44 without the vacuum line and 38psi with the vacuum line on