RA Glows

I'm experiencing erratic down shifts from 6th to 4th the from 3rd to 1st. When I depress the accelerator in 4th,5th and 6th gears car revs to high rpms and moves like a slug!!!

If I turn the car OFF the gears shift normal in sport or normal mode in manual or auto but I still feel consistent slippage in 5th and 6th gears.



I'm thinking of doing one of two things. 1.) Go back to stock and have it serviced by mitsu and just hold off the modding for now.
2.) Give SS Performance a call to get a quote on the clutch packs.

If I go back to stock I'm eventually going to trade in for something else.

PS Car has 25K + miles on it.

What should I do?

xi

Didn't someone have that same problem with a fouled up MAF sensor in his X MR?

RA Glows

yeah I'll have to see if my sensor is dead maybe I'll replace it. but it still doesn't explain the slipping of gears in 5th and 6th gears.

Q15H

iTrader: (5)

It's not the gearbox.

theboricua

iTrader: (20)

MAF sensor

RA Glows

How can I tell if it's the MAF sensor for sure. Do have to replace it or is there a way to tell if it's shot. I don't want to spend 300 +on a MAF sensor until I know I need one.

Thx.

ugakirk

iTrader: (14)

Try cleaning it. They are extremely sensitive though, so don't use any cleaners that aren't made for it.

I think its the MAF sensor too, btw.

RA Glows

going to have it checked today will keep you posted.

Mendo

iTrader: (2)

I had this happen on my X MR, but I was throwing CEL P0102. Check the thread with the poll about what Filter was used when the MAF died, and towards the end I posted a pic of mine. There you can see some crap that made it mess up.

I don't think cleaning it will fix it but it is worth a try, these MAFs are horrible. I got a new one from the dealership for $241 + tax.

Webman

For me the P1235 code NEVER caused odd/even gear skipping.

GST Motorsports

iTrader: (8)

P1235 is not MAF, it's torque/airflow limiter related. Which could happen indirectly from a borked MAF but usually because of surpassing the limits, which could happen indirectly from a borked MAF..... round and round we go.

OP: Your trans is in limp mode. It's fine. You need to pull the CEL and see what code you have

- Bryan

RA Glows

went to autozone today.

Here are the following codes.

P0420

Transmission codes
P181E
P187A
P187B

ANY ideas???

I found this on evo X forums

•P0630: VIN not recorded
•P0701: EEPROM system (Malfunction)
•P0702: Internal control module, monitoring processor system (Malfunction)
•P0711: TC-SST-ECU temperature sensor system (Gradient error)
•P0712: TC-SST-ECU temperature sensor system (Output low range out)
•P0713: TC-SST-ECU temperature sensor system (Output high range out)
•P0715: Input shaft 1 (odd number gear axle) speed sensor system (Output high range out)
•P0716: Input shaft 1 (odd number gear axle) speed sensor system (Poor performance)
•P0717: Input shaft 1 (odd number gear axle) speed sensor system (Output low range out)
•P0725: Engine speed signal abnormality
•P0746: Line pressure solenoid system (Drive current range out)
•P0753: Shift select solenoid 1 system (Open circuit)
•P0758: Shift select solenoid 2 system (Open circuit)
•P0776: Clutch cooling flow solenoid system (Drive current range out)
•P0777: Clutch cooling flow solenoid system (Stuck)
•P0841: Clutch 1 pressure sensor system (Poor performance)
•P0842: Clutch 1 pressure sensor system (Output low range out)
•P0843: Clutch 1 pressure sensor system (Output high range out)
•P0846: Clutch 2 pressure sensor system (Poor performance)
•P0847: Clutch 2 pressure sensor system (Output low range out)
•P0848: Clutch 2 pressure sensor system (Output high range out)
•P0960: Line pressure solenoid system (Open circuit)
•P0961: Line pressure solenoid system (Overcurrent)
•P0962: Line pressure solenoid system (Short to ground)
•P0963: Line pressure solenoid system (Short to power supply)
•P0964: Clutch cooling flow solenoid system (Open circuit)
•P0965: Clutch cooling flow solenoid system (Overcurrent)
•P0966: Clutch cooling flow solenoid system (Short to ground)
•P0967: Clutch cooling flow solenoid system (Short to power supply)
•P0968: Shift/cooling switching solenoid system (Open circuit)
•P0970: Shift/cooling switching solenoid system (Short to ground)
•P0971: Shift/cooling switching solenoid system (Short to power supply)
•P0973: Shift select solenoid 1 system (Short to ground)
•P0974: Shift select solenoid 1 system (Short to power supply)
•P0976: Shift select solenoid 2 system (Short to ground)
•P0977: Shift select solenoid 2 system (Short to power supply)
•P1637: EEPROM system (DTC storing malfunction)
•P1676: Coding incomplete
•P1802: Shift lever system (LIN communication malfunction)
•P1803: Shift lever system (CAN or LIN time-out error)
•P1804: Shift fork position sensor 1 and 2 system (Power supply voltage low range out)
•P1805: Shift fork position sensor 1 and 2 system (Power supply voltage high range out)
•P1806: Shift fork position sensor 3 and 4 system (Power supply voltage low range out)
•P1807: Shift fork position sensor 3 and 4 system (Power supply voltage high range out)
•P1808: TC-SST-ECU temperature, fluid temperature sensor system (Correlation error)
•P180C: Clutch pressure cut spool sticking
•P181B: Clutch 1 (Pressure low range out)
•P181C: Clutch 1 (Pressure high range out)
•P181E: Clutch 2 (Pressure low range out)
•P181F: Clutch 2 (Pressure high range out)
•P1820: Shift fork position sensor 1 system (Voltage low range out)
•P1821: Shift fork position sensor 1 system (Voltage high range out)
•P1822: Shift fork position sensor 1 system (Output range out)
•P1823: Shift fork position sensor 1 system (Neutral)
•P1824: Shift fork position sensor 1 system (Poor performance)
•P1825: Shift fork position sensor 2 system (Voltage low range out)
•P1826: Shift fork position sensor 2 system (Voltage high range out)
•P1827: Shift fork position sensor 2 system (Output range out)
•P1828: Shift fork position sensor 2 system (Neutral)
•P1829: Shift fork position sensor 2 system (Poor performance)
•P182A: Shift fork position sensor 3 system (Voltage low range out)
•P182B: Shift fork position sensor 3 system (Voltage high range out)
•P182C: Shift fork position sensor 3 system (Output range out)
•P182D: Shift fork position sensor 3 system (Neutral)
•P182E: Shift fork position sensor 3 system (Poor performance)
•P1831: Shift fork position sensor 4 system (Voltage low range out)
•P1832: Shift fork position sensor 4 system (Voltage high range out)
•P1833: Shift fork position sensor 4 system (Output range out)
•P1834: Shift fork position sensor 4 system (Neutral)
•P1835: Shift fork position sensor 4 system (Poor performance)
•P1836: Shift fork 1 malfunction
•P183D: Shift fork 2 malfunction
•P1844: Shift fork 3 malfunction
•P184B: Shift fork 4 malfunction
•P1852: Shift fork 1 or 2 opposite direction movement
•P1855: Shift fork 3 or 4 opposite direction movement
•P1857: Odd number gear axle interlock
•P1858: Even number gear axle interlock
•P1859: Disengagement too late with clutch 1
•P185A: Engagement too late with clutch 1
•P185B: Disengagement too late with clutch 2
•P185C: Engagement too late with clutch 2
•P185D: Clutch open not possible
•P1862: High side 1 system (Overcurrent)
•P1863: High side 1 system (Open circuit)
•P1864: High side 1 system (Short to power supply)
•P1866: High side 2 system (Overcurrent)
•P1867: High side 2 system (Open circuit)
•P1868: High side 2 system (Short to power supply)
•P186A: High side 3 system (Overcurrent)
•P186B: High side 3 system (Open circuit)
•P186C: High side 3 system (Short to power supply)
•P186D: High side 1 system (Voltage low range out)
•P186E: High side 2 system (Voltage low range out)
•P186F: High side 3 system (Voltage low range out)
•P1870: Engine torque signal abnormality
•P1871: APS system (Signal abnormality)
•P1872: Between shift lever and TC-SST system (Q-A function abnormality)
•P1873: Clutch 1 system (Pressure abnormality)
•P1874: Clutch 2 system (Pressure abnormality)
•P1875: Damper speed sensor system (Poor performance)
•P1876: Gear block 1st
•P1877: Gear block 2nd
•P1878: Gear block 3rd
•P1879: Gear block 4th
•P187A: Gear block 5th
•P187B: Gear block 6th
•P187C: Gear block reverse
•P1880: EOL Mode Active
•P1881: Twin clutch SST control mode switch system (Malfunction)

Hope this helps!

--------------------------------------------------------------------------------
Last edited by TheSin : 01-04-2010 at 12:22 AM. Reason: Formated to become Sticky, Thanks for the Great Post!

saytheb
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12-24-2009, 07:28 AM #2
Ray Knight
Just Spooling Up




Join Date: May 2009
iTrader: (100)
Posts: 415 **START** edited by kidneythief13 for picture overflow, from first post**
•P2718: Clutch/shift pressure solenoid 1 system (Open circuit)
•P2719: Clutch/shift pressure solenoid 1 system (Overcurrent)
•P2720: Clutch/shift pressure solenoid 1 system (Short to ground)
•P2721: Clutch/shift pressure solenoid 1 system (Short to power supply)
•P2727: Clutch/shift pressure solenoid 2 system (Open circuit)
•P2728: Clutch/shift pressure solenoid 2 system (Overcurrent)
•P2729: Clutch/shift pressure solenoid 2 system (Short to ground)
•P2730: Clutch/shift pressure solenoid 2 system (Short to power supply)
•P2733: Clutch/shift switching solenoid 1, spool stuck
•P2736: Clutch/shift switching solenoid 1 system (Open circuit)
•P2738: Clutch/shift switching solenoid 1 system (Short to ground)
•P2739: Clutch/shift switching solenoid 1 system (Short to power supply)
•P2741: Fluid temperature sensor system (Gradient error)
•P2742: Fluid temperature sensor system (Output low range out)
•P2743: Fluid temperature sensor system (Output high range out)
•P2766: Input shaft 2 (even number gear axle) speed sensor system (Poor performance)
•P2809: Clutch/shift switching solenoid 2, spool stuck
•P2812: Clutch/shift switching solenoid 2 system (Open circuit)
•P2814: Clutch/shift switching solenoid 2 system (Short to ground)
•P2815: Clutch/shift switching solenoid 2 system (Short to power supply)
•U0001: Bus off
•U0100: Engine time-out error
•U0103: Shift lever time-out error
•U0121: ASC time-out error
•U0136: AWC time-out error
•U0141: ETACS time-out error


FAIL-SAFE REFERENCE TABLE

Clutch open prohibits the vehicle from driving, and displays an occurrence of trouble to the multi information display to warn the driver.
P0702, P1803, P1804, P1805, P1806, P1807, P1857, P1858, P185D, P1866, P1868, P1872

Continues driving with the current gear fixed, and an occurrence of trouble is displayed to the multi information display to warn the driver.
P0776, P0777, P0964, P0965, P0966, P0968, P0970, P0971, P1852, P2733, P2736, P2738, P2739

Drives with the odd number gear axle (1st, 3rd, 5th gear) or with the even gear axle (2nd, 4th, 6th gear), and an occurrence of trouble is displayed to the multi information display to warn the driver.
P0715, P0716, P0753, P0758, P0841, P0842, P0843, P0846, P0847, P0848, P0973, P0974, P0976, P181B, P181C, P181E, P181F, P1820, P1821, P1822, P1824, P1825, P1826, P1827, P1829, P182A, P182B, P182C, P182E, P1831, P1832, P1833, P1835, P1836, P183D, P1844, P184B, P1855, P1859, P185B, P2718, P2719, P2720, P2721, P2728, P2729, P2730, P2766, P2809, P2812, P2814, P2815

Drives with the gears other than the gears related to the part in trouble, and an occurrence of trouble is displayed to the multi information display to warn the driver.
P1862, P1863, P186A, P186B, P1876, P1877, P1878, P1879, P187A, P187B, P187C

The creep driving cannot be performed, and displays an occurrence of trouble to the multi information display to warn the driver.
P1871, U0001, U0100

Shift shock or shift response deterioration occurs, and displays an occurrence of trouble to the multi information display to warn the driver.
P0746, P0963, P1870, P1871

Normal driving can be performed, and displays an occurrence of trouble to the multi information display to warn the driver.
P0630, P0701, P0711, P0712, P0713, P0960, P0961, P0962, P0967, P1637, P1676, P180C, P1864, P1867, P186C, P186D, P186E, P186F, P1873, P1874
P1875

xi

Dunno why low clutch pressure on #2 clutch would affect both gears 5 and 6 (the other 2 codes).

Your first one, P0420, from the OBDII site is:

Catalyst System Efficiency Below Threshold (Bank 1)

What does that mean?
The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. The downstream O2 sensor reading should be fairly steady. Typically the P0420 code triggers the Check Engine Light if the readings of the two sensors are similar. This is indicative of (among other things) a converter that is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.

A code P0420 may mean that one or more of the following has happened:

Leaded fuel was used where unleaded was called for
An oxygen sensor is not reading (functioning) properly
The engine coolant temperature sensor is not working properly
Damaged or leaking exhaust manifold / catalytic converter / exhaust pipe
Retarded spark timing
The oxygen sensors in front and behind the converter are reporting too similar of readings

gunzo

iTrader: (2)

P181E is probably the cause of your 5th and 6th ..
Gear blockage can come from low oil quantity causing low oil pressure

5th gear blocked because it was unable to dwnshift from 6th to 5th because there was insufficient pressure to release 6th

6th gear blocked because it was unable to shift 6th gear into position to be engaged ..

Your MAF is ok .. nothing wrong with it ..

P420 doesn't cause limp mode if I'm not wrong ? anyways.. limp mode doesn't cause P181E

put the ROM back to stock and see if it happens still

Webman

I'm well aware of what P1235 is after going through what I did with my car. When P1235 gets thrown, the car goes into LIMP mode. Gear skipping is not one of the things that I ever experienced when that occurred. That was my point.