Skipped tooth

[awzer2]

ok my car skipped a tooth.

You must be logged in to view this image or video.

Would it cause my car to run off only 2 cylinders?

 

[MilwaukeeGSX]

It would feel like it was running on 2 cyl. But i thought the issue you where have before was that there was no spark in 2&3?

 

[awzer2]

It would feel like it was running on 2 cyl. But i thought the issue you where have before was that there was no spark in 2&3?

it IS the issue,but i talked to a mechanic and he said incorrect timing could cause the CAS to tell the ecu not to fire coils 2&3.

 

[regulator213]

how do you know for sure that your coils aren't firing? Being a whole tooth off could make the car feel like its only running on two cylinders...

 

[KevinRR]

Best thing to do is to fix the timing and do a compression check just to make sure. If the timing is correct and you have good compression, but still feel like it running on 2 cylinder then check the coil to make sure it working.

 

[awzer2]

Best thing to do is to fix the timing and do a compression check just to make sure. If the timing is correct and you have good compression, but still feel like it running on 2 cylinder then check the coil to make sure it working.

you dont understand it doesnt FEEL like it's runnin' on 2 cylinders it IS running on two cylinders. i changed the power converter ,sparks,cables,coils,and checked the ecu plus the wires everything is fine. is it the timing giving me this problem? or possibly a vacuum? what are all the things that can give me the result of not running two cylinders.

 

[BoostedTsiFWD]

you dont understand it doesnt FEEL like it's runnin' on 2 cylinders it IS running on two cylinders. i changed the power converter ,sparks,cables,coils,and checked the ecu plus the wires everything is fine. is it the timing giving me this problem? or possibly a vacuum? what are all the things that can give me the result of not running two cylinders.

Crank, cam sensor. Wiring from the two. Wiring from the ECU to the transistor for the 1 & 4 coil. Not to mention the fact that it go's through the speed detection connector, and then the grounds. Then there is timing. There is nothing else under that hood that will effect that specific coil. I have my car in front of my house finally. Tomorrow ill be out front trying a few things. Ill post the results and if anything worked.

 

[awzer2]

Crank, cam sensor. Wiring from the two. Wiring from the ECU to the transistor for the 1 & 4 coil. Not to mention the fact that it go's through the speed detection connector, and then the grounds. Then there is timing. There is nothing else under that hood that will effect that specific coil. I have my car in front of my house finally. Tomorrow ill be out front trying a few things. Ill post the results and if anything worked.

alright boost you're my best friend right now .

 

[Spoolin18]

Being off a tooth would not shut down 2 cylinders. A stupid mechanic did my t-belt job on my first talon 7 years ago, he got it off a full tooth because of the exhaust tending to rotate counterclockwise when set, he failed to take that into consideration. he retarded the case to make it run better a family member picked the car up for me because I was busy at work and drove it for 50 miles home. He said it died twice, I went and checked it and found the problem, needless to say I was pissed. Luckily it did no damage.

 

[awzer2]

Being off a tooth would not shut down 2 cylinders. A stupid mechanic did my t-belt job on my first talon 7 years ago, he got it off a full tooth because of the exhaust tending to rotate counterclockwise when set, he failed to take that into consideration. he retarded the case, a family member pciked the car up for me because I was busy and drove it for 50 miles home. He said it died twice, I w\ent and checked it and found the problem, needless to say I was pissed. Luckily it did no damage.

Damn that's garbage,i don't trust anyone with my car.
When you own a dsm that's why you gotta be your own mechanic hah
but damn are you 100% positive it wont shut 2&3 down?WTF

 

[92tsiawdguy]

it wont shut the spark off to any cylinder because of the timing being off, it will just fire late or early

 

[awzer2]

it wont shut the spark off to any cylinder because of the timing being off, it will just fire late or early

damn that was my last hope i dunno what to do anymore.....shit i guess i gotta take it to the race shop f*&k...there goes 500$'s from my pockets.

 

[92tsiawdguy]

sounds like a wiring issue

 

[Spoolin18]

it wont shut the spark off to any cylinder because of the timing being off, it will just fire late or early

This is correct, did you check the power transister?

 

[awzer2]

This is correct, did you check the power transister?

yeah i checked EVERYTHINGonly thing i havent done is fix the timing.

 

[Spoolin18]

yeah i checked EVERYTHINGonly thing i havent done is fix the timing.

if you can mechanic yourself, fix the timing, you sure its not getting firing at those cylinders/ Have you checked for piston damage to those cylinders?

 

[awzer2]

if you can mechanic yourself, fix the timing, you sure its not getting firing at those cylinders/ Have you checked for piston damage to those cylinders?

Homie...the COILS aren't firing haha.... the cylinders are straight.
i figure i have shitty timing, a jacked up wire/no ground or bad CAS...
But ughh im all out of ideas other than those.

 

[snowborder714]

Have you verified that the other timing marks are in fact lined up when the cam gear marks are not?

 

[BoostedTsiFWD]

Have you verified that the other timing marks are in fact lined up when the cam gear marks are not?

I was getting ready to suggest this. Maybe the Crank and cam sensors are grounding themselves out somehow when the coil goes to fire. I need to adjust my timing also. Its been raining so i haven't been able to yet. My guess is that the ECU is not receiving the signal to fire the coil. All my wiring checks out. Which means this is a hardware issue or some very effed up timing. Ill see what i can do about my timing tomorrow.

 

[Spoolin18]

Homie...the COILS aren't firing haha.... the cylinders are straight.
i figure i have shitty timing, a jacked up wire/no ground or bad CAS...
But ughh im all out of ideas other than those.

If it skipped timing, it is possible that a valve went through the top of the piston, which in turn would lead to a loss of compression, effectivley shutting down those two cylinders, not the cylinder walls, the pistons.

Of corse though, they would still probably recieve fire.

 

[BoostedTsiFWD]

If it skipped timing, it is possible that a valve went through the top of the piston, which in turn would lead to a loss of compression, effectivley shutting down those two cylinders, not the cylinder walls, the pistons.

Of corse though, they would still probably recieve fire.

No, they would receive fire. The motors are fine. I know mine is anyway. The ECU just refuses to fire that damn coil.

http://media.photobucket.com/image/dsm ignition system/Ksyrium/LancerIgnition-1.jpg

Have you tried checking the input signals yet? Im going to give it a try on my side.

 

[awzer2]

No, they would receive fire. The motors are fine. I know mine is anyway. The ECU just refuses to fire that damn coil.

Dsm ignition system image by Ksyrium on Photobucket

Have you tried checking the input signals yet? Im going to give it a try on my side.

share the results.

 

[BoostedTsiFWD]

Ok, update time! With results might i add. I have done alot more research these past couple of hours and managed to dig up a few more threads with the same problem we are having. Of them all, 3 were resolved. All three were resolved by replacing the CPS. Im going to order one this Friday and keep my fingers crossed. Wish me luck.

Heres a thread with the same problem and how to test it. Make sure your car is in time first though.

http://www.dsmtuners.com/forums/new...k-not-firing-suggestions-2.html#post151265251

Do a quick check first. Try to start your car and watch your tach. it should jump to around 200 rpm while trying to start. If it doesn't move than the CPS is to blame for your problems and mine .

 

[Beemer92]

I know on my 2G, the TB jumped 3 teeth cause the tensioner gave up. The car ran for about 10 seconds, then died. Make sure those valves are NOT bent. I got really lucky on mine. Do a complete TB job. And make sure that hydro tensioner didn't give up. Good Luck