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Discussion Starter · #1 ·
Hello, I am currently in Toowoomba in my patrol towing my caravan with the wife and kids visiting family for Christmas ( we are from Brisbane) Today my 4.8 has had the engine light come on and has gone into limp mode, the RACQ man said it is a sensor fault somewhere but was unable to help me any further.

Does anyone know how to extract the error / fault code on a 2002 4.8

I have tried various methods found within this forum but non seem to work on the 2002 4.8

the engine starts fine but will not rev even when in park, the RACQ man said it is putting fuel into the exhaust,

any help is muchly needed

oh and Merry Christmas
 

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Could just be a O2 sensor failure which if they are the originals is something I would be expecting the age of the vehicle and they would have been under high temperatures as you are towing the van.

If these go then the vehicle will over fuel and be a slug.

Whilst RACQ are generally less useful than tits on a bull they might be right this time.
 

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Discussion Starter · #4 ·
I replaced the 02 sensors a few months ago, with cheap ebay ones, Im thinking they may have failed under load and heat from the exhaust, I towed the 2 tonne van up the Toowoomba range pretty much flat out, it pulled like a train, so maybe they have died, if i can read the fault codes will that tell me?
 

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Discussion Starter · #6 ·
at the time when I needed them, they were the only ones I could find online, but I still need to find out if they are faulty, so I need to read the error code, but how?
 

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Go to a nissan dealer unless there is a way to bridge terminals in the OBDII plug to get the fault code transmitted by the engine light.
 

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http://www.patrol4x4.com/forum/niss...ference-document-zd30-owners-look-here-31418/

The above may help, scroll down a bit and you will come to the fault codes bit. Not sure if it will be relevant, but it may be worth a try.

Last time I had one of those vehicles play up on me with similar symptoms, it was a faulty Throttle Position sensor/throttle motor unit, was over $1000 to replace, and was ages getting here. Not saying its the same fault, however.

See how you go extracting the codes, if it works, post the codes, we shall see who can help.
 

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Yobbo48, i just went through the exact same thing. I have a 2002 GU TI and had to replace O2 sensors and got cheap ones of ebay. They were ok for a couple of months then the engine light came on and limp mode activated. To cut a long story short I bought 2 second hand genuine O2 sensors from a wrecker, $200, then took it to nissan, and they reprogrammed the ecm to suit the O2 sensors. So far so good!!! They charged $275 for the reprogramme

To find out diagnostic codes in the car ill cut and paste from the nissan service manual. You can reset all codes if you get stuck in limp mode ( as long as its only a emissions related problem) as i had too a couple of times.

HOW TO SWITCH DIAGNOSTIC TEST MODENOTE:
+ It is better to count the time accurately with a clock.
+ It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit
has a malfunction.
+ Always ECM returns to Diagnostic Test Mode I after ignition switch is turned “OFF”.
How to set diagnostic test mode II (Self-diagnostic results)
1. Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
2. Repeat the following procedure quickly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MI starts
blinking.
4. Fully release the accelerator pedal.
ECM has entered to Diagnostic Test Mode II (Self-diagnostic results).
How to set diagnostic test mode II (Heated oxygen sensor 1 monitor)
1. Set the ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to EC-52, “How to set diagnostic
test mode II (Self-diagnostic results)”.
2. Start Engine.
ECM has entered to Diagnostic Test Mode II (Heated oxygen sensor 1 monitor).
ECM will start heated oxygen sensor 1 monitoring from the bank 1 sensor.
How to switch monitored sensor from bank 1 to bank 2 or vice versa
1. Fully depress the accelerator pedal quickly and then release it immediately.
2. Make sure that monitoring sensor has changed by MI blinking as follows.
How to erase diagnostic test mode II (Self-diagnostic results)
1. Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to EC-52, “How to set diagnostic test
mode II (Self-diagnostic results)”.
2. Fully depress the accelerator pedal and keep it for more than 10 seconds.
The emission-related diagnostic information has been erased from the backup memory in the ECM.
3. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
PBIB0092E
PBIB0093E
ON BOARD DIAGNOSTIC (OBD)
SYSTEM TB48DE A/T (WITH EURO-OBD)
Malfunction Indicator (MI) (Cont’d)
EC-52

Fault codes as per service manual
Emission-related Diagnostic Information
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS
Items
(CONSULT-II screen terms)
DTC*1
SRT code
Test Value/
Test Limit
(GST only)
1st trip DTC
Reference
CONSULT-II page
GST*2
ECM
CAN COMM CIRCUIT U1000 1000*3 — — — EC-121
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.
P0000 0000 — — — —
HO2S1 HTR (B1) P0031 0031 x x x*4 EC-124
HO2S1 HTR (B1) P0032 0032 x x x*4 EC-124
HO2S2 HTR (B1) P0037 0037 x x x*4 EC-132
HO2S2 HTR (B1) P0038 0038 x x x*4 EC-132
HO2S1 HTR (B2) P0051 0051 x x x*4 EC-124
HO2S1 HTR (B2) P0052 0052 x x x*4 EC-124
HO2S2 HTR (B2) P0057 0057 x x x*4 EC-132
HO2S2 HTR (B2) P0058 0058 x x x*4 EC-132
MAF SEN/CIRCUIT P0102 0102 — — — EC-140
MAF SEN/CIRCUIT P0103 0103 — — — EC-140
IAT SEN/CIRCUIT P0112 0112 — — x EC-147
IAT SEN/CIRCUIT P0113 0113 — — x EC-147
ECT SEN/CIRCUIT P0117 0117 — — — EC-152
ECT SEN/CIRCUIT P0118 0118 — — — EC-152
TP SEN 2/CIRC P0122 0122 — — — EC-157
TP SEN 2/CIRC P0123 0123 — — — EC-157
HO2S1 (B1) P0132 0132 x x x*4 EC-163
HO2S1 (B1) P0133 0133 x x x*4 EC-172
HO2S1 (B1) P0134 0134 x x x*4 EC-172
HO2S2 (B1) P0138 0138 x x x*4 EC-195
HO2S2 (B1) P0139 0139 x x x*4 EC-205
HO2S1 (B2) P0152 0152 x x x*4 EC-163
HO2S1 (B2) P0153 0153 x x x*4 EC-172
HO2S1 (B2) P0154 0154 x x x*4 EC-172
HO2S2 (B2) P0158 0158 x x x*4 EC-195
HO2S2 (B2) P0159 0159 x x x*4 EC-205
FUEL SYS-LEAN-B1 P0171 0171 — — x EC-218
FUEL SYS-RICH-B1 P0172 0172 — — x EC-227
FUEL SYS-LEAN-B2 P0174 0174 — — x EC-218
FUEL SYS-RICH-B2 P0175 0175 — — x EC-227
TP SEN 1/CIRC P0222 0222 — — — EC-235
TP SEN 1/CIRC P0223 0223 — — — EC-235
MULTI CYL MISFIRE P0300 0300 — — x EC-241
CYL 1 MISFIRE P0301 0301 — — x EC-241
CYL 2 MISFIRE P0302 0302 — — x EC-241
ON BOARD DIAGNOSTIC (OBD)
SYSTEM TB48DE A/T (WITH EURO-OBD)
EC-38
ECM
CYL 3 MISFIRE P0303 0303 — — x EC-241
CYL 4 MISFIRE P0304 0304 — — x EC-241
CYL 5 MISFIRE P0305 0305 — — x EC-241
CYL 6 MISFIRE P0306 0306 — — x EC-241
KNOCK SEN/CIRC-B1 P0327 0327 — — x EC-247
KNOCK SEN/CIRC-B1 P0328 0328 — — x EC-247
KNOCK SEN/CIRC-B2 P0332 0332 — — x EC-247
KNOCK SEN/CIRC-B2 P0333 0333 — — x EC-247
CKP SEN/CIRCUIT P0335 0335 — — x EC-251
CMP SEN/CIRC-B1 P0340 0340 — — x EC-257
TW CATALYST SYS-B1 P0420 0420 x x x*4 EC-264
TW CATALYST SYS-B2 P0430 0430 x x x*4 EC-264
PURG VOLUME CONT/V P0444 0444 — — x EC-269
PURG VOLUME CONT/V P0445 0445 — — x EC-269
VEH SPEED SEN/CIRC P0500 0500 — — x EC-276
PW ST P SEN/CIRC P0550 0550 — — x EC-278
ECM P0605 0605 — — x EC-283
MIL/CIRC P0650 0650 — — x EC-286
TCC SOLENOID/CIRC P0740 0740 — — x AT section
L/PRESS SOL/CIRC P0745 0745 — — x AT section
ECM BACK UP/CIRC P1065 1065 — — x EC-290
INT/V TIM V/CIR-B1 P1111 1111 — — x EC-294
ETC ACTR P1121 1121 — — x EC-299
ETC FUNCTION/CIRC P1122 1122 — — — EC-301
ETC MOT PWR P1124 1124 — — — EC-309
ETC MOT PWR P1126 1126 — — — EC-309
ETC MOT P1128 1128 — — — EC-315
HO2S1 (B1) P1143 1143 x x x*4 EC-320
HO2S1 (B1) P1144 1144 x x x*4 EC-327
HO2S2 (B1) P1146 1146 x x x*4 EC-335
HO2S2 (B1) P1147 1147 x x x*4 EC-348
HO2S1 (B2) P1163 1163 x x x*4 EC-320
HO2S1 (B2) P1164 1164 x x x*4 EC-327
HO2S2 (B2) P1166 1166 x x x*4 EC-335
HO2S2 (B2) P1167 1167 x x x*4 EC-348
ENG OVER TEMP P1217 1217 — — — EC-361
CTP LEARNING P1225 1225 — — x EC-372
CTP LEARNING P1226 1226 — — x EC-374
SENSOR POWER/CIRC P1229 1229 — — — EC-376
CKP SENSOR (COG) P1336 1336 — — x EC-381
Items
(CONSULT-II screen terms)
DTC*1
SRT code
Test Value/
Test Limit
(GST only)
1st trip DTC
Reference
CONSULT-II page
GST*2
ECM
NATS MALFUNCTION
P1610 -
P1615
1610 - 1615
— — x EC-50
P-N POS SW/CIRCUIT P1706 1706 — — x EC-388
BRAKE SW/CIRCUIT P1805 1805 — — x EC-395
APP SEN 1/CIRC P2122 2122 — — — EC-401
APP SEN 1/CIRC P2123 2123 — — — EC-401
APP SEN 2/CIRC P2127 2127 — — — EC-408
APP SEN 2/CIRC P2128 2128 — — — EC-408
TP SENSOR P2135 2135 — — — EC-415
APP SENSOR P2138 2138 — — — EC-421

Sorry for the info overload, but it helped me out!!, you just need to count the flashes of the engine light, a 0 is ten flashes, and so on. You need a 4 digit code to refer to falut codes

Cheers
 

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Get a Blazt cable and software next time. Just setup on a laptop and click connect. Everything you could hope for and constantly updating the software all the time. Does more than you'll need.

My vehicle has laptop installed all the time so have virtual dash etc at a click. Best investment I've made for my 4.8.
 

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The throttle body position sensor also causes the engine light and limp mode to come on. I had this on a trip to Exmouth earlier on this year. It was doing it consistently for a day and I thought I might have been in a bit of trouble, I played around with all the connectors and it stopped doing it (don't know if I did anything or not).

Once I got home I cleaned out the throttle body with throttle body cleaner and it never did it again. For the record I was getting throttle open faults (engine was going into limp mode because it thought the throttle was stuck wide open).
 

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Get a Blazt cable and software next time. Just setup on a laptop and click connect. Everything you could hope for and constantly updating the software all the time. Does more than you'll need.

My vehicle has laptop installed all the time so have virtual dash etc at a click. Best investment I've made for my 4.8.
Ive been thinking about doing this also. I have an old toshiba satellite laptop that i plan on mounting above the empty passenger side airbag compartment.

Just gotta work out where to run the wires and how to power it up. Can double as a dvd player for this missus on long trips too. She can wack a set of headfones in and be in movie wonderland.
 

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Discussion Starter · #13 ·
Thanks BowTieGQ, I have ordered the BlaZt cable and software, so that should help, I will update with the result

I unplugged the 02 sensors today and it made no difference, the engine light was still on and would rev and start breaking down at 3500 rpm, and plugging them back in made no difference,

Thanks again
 

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I know it won't help you out right now but it'll solve almost everything once you've got it. And so easy to use. Even if you don't want to run any sort of pc on board, you can at least plug on in as needed.

Blazt also have a forum and recommend everyone on here that has the software to join it. Helps them do further develop it and helps us to use it to it's best.

I have the latest beta version (I spesh ;) )and there is a tab to bring up all the auto's info as well. Sooo cool.
 

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Discussion Starter · #15 ·
The RACQ are going to tow my Patrol back to Brisbane during the week, My Dad took us and our caravan back to Brissy today , I only use the Patrol every now and again as I have a old 60 series cruiser we run around town in and I have a work truck that I keep at home, So I`m now in no rush, in fact in the last 19 months we have only driven the Patrol 10,000km which included a 5,000km caravan trip to North Qld last year, I will replace the cheap 02 sensors with better quality bosch one anyhow

Thanks again
 

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Discussion Starter · #17 ·
I have read the fault code and get the following

0134 o2 sensor
0154 o2 sensor
1122 electronic throttle control
0605 ECM


would 1122 mean the cruise control?

and 0605 the ECM anybody else had this???????

when I reset the ECM it drives A ok until the next time I start it, then the light comes back on, I will replace the o2 sensors next week, it`s the 0605 code I'm worried about
 
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