alright so here's the deal i got an act clutch and flywheel installed the other day. so now i got a problem for some reason the throttle cuts offf at like 3800-4000 rpm, pretty much redlines at those rpm's.... does any1 have any idea why this is happening and also sometimes when i'm at a red light... with the clutch all the way down just idling the car will stall out,, it's realll confusing so does any1 have any idea or anything on why this is happening???//
btw. 03' 350z....

 

Chk Oxygen sensor conections and Crank position sensor connection/unit. Was there a accurate dowel pin location on ur ACT ???

 

im thinking the dowel as well...someone else had it set the wrong way on their g...

 

honestly man i have no idea... i'm bringing it back to the shop later today.. so i mean what's this whole dowel pin thing about,,, i'm trying to get as much info as i can.. cuz the more i can tell him the quicker he can fix it cuz i dont wanna wait too long so if u can please tell me what i should tell him to and how would he fix it?? if you know... cuz it's reallly bugging me..
Thanks,
realllly appreciate it!

 

The G and the Z use the same flywheel but timing is different---So---There are 2 female holes in the flywheel to accept the Male pin on the end of the crank---One hole is for the G ,,the other is for the Z

 

But ---If they damaged ur Crank position sensor or it just plain got damaged, then that will mess ur timing also

 

is there any other possibilities.... of what it could be???

 

if it was that the car wouldn even work... happened to me and the car starts but it sounds like there is a chunk of metal running throught the engine and tranny. they probably forgot to coneect a sensor when they reinstalled the tranny.

 

And the only sensors affected by tranny removal are the 2 O2s and the CPS

 

yeah it sounds like something is rattling around somewhere when i rev it up, did you get yours fixed???

 

I was thinking of ur deal as I was writting that ---I had forgotten the symptoms

 

alrite soooo another problem... just earlier i was driving and like the car jolted again, and the VDC OFF light and the SLIP light both came on and stayed on... also i found out that it's the crank shaft position sensor that's damaged causing the rev limiter to kick in at 4 grand... so it's 40 dollars for the part... but yeahhh does any1 know why the lgihtscame on...???? let me know.. thanks

 

Replace the sensor ---U mite just be getting a bad signal cuz of the erotic actions---Slip mode is a little sensitive

 

One side is for FWD VQ35... the other is for RWD...

Timing marks on the flywheel are the same for 350z / G35 and use the same crank position pin...

Sounds like a sensor problem to me like mentioned above...

 

quick question... if i'm in neutral and i let go of the clutch and there's a little "rattling" noise or something in that sense, what is that, and also when i'm in low rpm's... under 2000 or so... anyone????