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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


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Old 01-12-2012, 10:46 PM   #1
rwtf
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Angry ka24de 2k bog on stock timing? plus 5k rev limit? WTF

When I set my ka24de to stock timing here a bog around 2k and doesnt pull very well at all.

its pretty much at any position of the throttle.

when I advance the shit out it, it pulls pretty decent then starts to bog overtime. I clean the MAF every so often and it pulls great again at advance timing. but really shitty at the stock 20* BTDC.

BUT, I also have a 5k rev limit. in ALL gears and in Neutral.

also when doing abit of hard driving and reving my tach goes retarded and doesnt read correctly at all. Could my CAS be crap?
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Old 01-15-2012, 06:39 PM   #2
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anyone?
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Old 01-15-2012, 07:39 PM   #3
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Check TPS?
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Old 01-18-2012, 12:57 PM   #4
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Update: Well I got a new maf from a friend and it cleaned up very nicely. and makes good power until it hits 3k. then its just like a loss of power.

I still hit a 5k rev limit and sometimes my tach will act funny.
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Old 01-18-2012, 02:52 PM   #5
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Safe mode? Reset the ecu
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Old 01-18-2012, 03:03 PM   #6
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Try and resetting the Ecu... You can also try a Auto Ecu will get rid of the Rev limit
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Old 01-18-2012, 05:44 PM   #7
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I wish I had a auto ecu to try. but I will reset it and see what happens.
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Old 01-22-2012, 06:32 PM   #8
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Did you ever get the Ecu?
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Old 01-22-2012, 07:47 PM   #9
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Not sure if this is the problem but check the 5th gear sensor in your transmission.. If the car thinks it's in 5th gear all the time it'll turn the speed limiter on in every gear. Which happens to be around 5k. Unplug your speed sensor go for a drive and see if the problem is still there.
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Old 01-22-2012, 08:36 PM   #10
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well the 4th and 5th gear sensor is unplugged. so I should unplug the VSS?
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Old 01-25-2012, 11:42 PM   #11
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bump ((

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Old 01-25-2012, 11:55 PM   #12
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wiring perhaps.

at night, when it bogs, do you see any electrical woes, like dimming of headlights, or interior lights?
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Old 01-26-2012, 12:47 AM   #13
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The bogging is gone.

the 5k rev limit is will there.
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Old 01-28-2012, 09:45 PM   #14
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Does it feel like you hit a fuel cut-off at 5k rpm? Like this:

http://www.youtube.com/watch?v=PcR8FMLo4U8

If it does, it's your TPS. Get a new one, read up on how to set the proper voltage, and try your car out again.
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Old 01-29-2012, 12:31 AM   #15
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eh...not exactly. I will take a vid tomorrow.
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Old 01-29-2012, 10:16 AM   #16
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thats the problem i have and i got a new fuel pump and mafs tps and filter plugs and wires too but my car does that now all the time but just wont go past 2500 rpm and it sucks.....
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Old 01-29-2012, 12:30 PM   #17
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2.5k limit is MAFS. Get that checked out.


Heres it in Neutral.
http://www.youtube.com/watch?v=ST_sWuaq81s

Heres while i'm driving.
http://www.youtube.com/watch?v=RvR4z...ature=youtu.be
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Old 01-29-2012, 04:28 PM   #18
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but i put a new mafs and i do need a air cleaner temp sensor if that does anythin?
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Old 01-29-2012, 09:40 PM   #19
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Is the car turbo? if so check the spark plug gaps, my ka-t was blowing out the spark at stock gapping
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Old 01-29-2012, 11:12 PM   #20
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Quote:
Originally Posted by srking View Post
but i put a new mafs and i do need a air cleaner temp sensor if that does anythin?
Check the wiring to the MAF itself.


And no, the car isnt turboed.
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Old 02-03-2012, 07:55 PM   #21
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bump

gdfghfgrhregsd
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Old 02-05-2012, 04:18 PM   #22
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Alright, I got a chance to pulled codes.

I think I got 11 and 12.

CAS and MAF. I know the MAF is good cuz its runs good until it hits 5k.

It might have been 11 and 13. 13 is CTS which idk if it would cause this sort of thing.
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Old 02-06-2012, 05:46 AM   #23
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check your 5th gear pos sensor for the 5k redline issue
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Old 02-06-2012, 06:44 AM   #24
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The 4th and 5th gear sensor is un plugged. I also cleaned all the grounds and sanded them down to make sure they gor good connection
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