Losing power 2000 3.0 patrol

[y61patrol]

Hi ,

I have a year 2000 3.0 litre Patrol and lately have noticed a power issue.
When going up hill i rev the engine which revs freely i might add and like 50% of the power feels like it is going to the wheels it feels the same in all gears aswell and now is becoming quite difficult to drive and get up hills

The car has 75,000 kmls and has had no NADS modifications yet.

I have checked MAF bye disconnecting and starting up and always check engine light comes on and when i reconnect it goes out. so its not that.

Just recently had a full service consisting of oil fillter and oil,Fuel filter,air filter and Maf cleaning.
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If any one could give some insight into the problem it would be most helpful

[the ferret]

Sounds like your turbo has spat the dummy mate, unless you have fuel blockage, I would check the fuel filter tho, even tho it's new.
Cheers, the ferret.

[y61patrol]

The symptoms im explaining do they point to limp mode?

Also the engine has blown an intercooler pipe recently probably overboosting i intend to do NADS when i fix this problem.

Each time i pull up now that i thiink about it i can smell a clutch smell.

[y61patrol]

It revs fine just the power doesnt feel like its going to the wheels.

[y61patrol]

How would i check if the fuel filter had a blockage?

[macca86]

Worn clutch if you're losing power going up hills or seized ir faulty master cylinder not getting clutch pressure. Also post up an introduction please

[the ferret]

If it smells like clutch, it is clutch, sounds like it's slipping and needs looking at, then fixing.
Rip the handbrake on and try and take off in 1st., if it stalls, the clutch is good, if not,..................... hmmmmmm $$$$$$$
Cheers, the ferret.

[macca86]

I was 1500 installed for new heavy duty clutch machined flywheel and master cylinder

[Dark 1]

Mate had a similar problem with exact same model & after replacing mac 3 times & heaps of other expensive bits to find out it was the injector pump. [$4000 + once rebuilt & reinstalled]

Good luck & welcome to the troll community.

[y61patrol]

Tried the clutch as you recommended the clutch would appear as it is not the cause now

?????

[macca86]

If it smells like clutch and under heavy loads or up hills and the revs rise with no acceleration its clutch

[the ferret]

That eliminates the clutch then.
I think you need to look at the fuel system then, could be fuel pump worn out, squashed fuel line, blockage, filter, sensors etc.
Best to take it to a good workshop and plug it into the computer and that should tell you what is not working.
"" I think my work is done here""
Cheers, the ferret.

[y61patrol]

I have pulled the codes bye bridging pins 1,8

And this is what i got

0102

0406

1401

What do these mean?
thanking you in advance

[boots]

Hi y61patrol . post a thread in the intro section and tell us all a bit about yourself, what part of the world your from / living , and your 4B , any mods etc . This will go a long way in regards to people giving you the time of day or maybe a helping hand when it comes to issues and stuff .

[boots]

Reading and erasing GU Patrol fault codes
Infomation Courtesey of Repco Autotech Encyclopedia 2006

NOTE; This information does not apply to 4.8 litre models.

Fault Codes

The 4 digit Fault Codes are displayed in two parts as flashes of the Check Engine Lamp.

The first part represents the first two digits of the fault code.

These are displayed as 0.6 second flashes.

The second part displays the second two digits of the fault code.

These are displayed as 0.3 second flashes.

There is a 0.9 second pause between the first and second parts of the code.

There is a 2.1 second gap between separate codes of different value.

Multiple codes will flash in order of numerical value, from lowest to highest.

Fault Code Erasure

Fault Code Erasure can be carried out with a Compatible Scan Tool or manually.

Manual Erasure:

1. Carry out Fault Code Extraction.
2. While the Fault Codes are being displayed, bridge Diagnostic Connector terminals 1 and 8.
3. Wait at least two seconds.
4. Disconnect the bridge between Diagnostic Connector terminals 1 and 8.
(This will erase the Fault Codes from ECM memory)

Should the above procedure fail to erase the Fault Codes;

Disconnect the battery negative cable or remove power to the ECM for 24 hours.

Ensure that other memory codes are known prior to performing this procedure.

Fault Code Extraction

Fault Code Extraction can be carried out with a Compatible Scan Tool or manually.

Manual Extraction:

1. Switch ignition ON.
2. Confirm the Check Engine Lamp illuminates.
(The system will be in Diagnostic Test Mode I.)
3. Bridge Diagnostic Connector terminals 1 and 8.
Confirm the Check Engine Lamp extinguishes.
4. Wait at least two seconds.
5. Disconnect the bridge between Diagnostic Connector terminals 1 and 8.
(The system will be in Diagnostic Test Mode II.)
6. Read Fault Codes as flashes of the Check Engine Lamp.

Do not switch ignition off during this procedure or the system returns to Diagnostic Test Mode I.

Fault Code Table

Code # Circuit and Status

0102 Mass Air Flow Sensor
Circuit, Sensor or ECM failure

0103 Engine Coolant Temperature Sensor
(excessively high or low voltage at ECM)
Circuit, Sensor or ECM failure

0104 Vehicle Speed Sensor
(signal not sent when vehicle is in motion)
Circuit, Sensor or ECM failure

0203 Accelerator Position Switch (incorrect signal sent to ECM)

Accelerator Position Switch fault or ECM failure


0208 Overheating Fault
Cooling Fan system failure, Engine coolant re-filling procedure not followed,
Cooling system faulty, Engine lubrication problem

0301 ECM 2, failure (calculation function is malfunctioning)
Internal IC failure

0402 Fuel Temperature Sensor
(incorrect signal for fuel temperature received)
Refer to Injection Pump Control Unit
Circuit, Sensor or ECM failure

0403 Accelerator Position Sensor
(out of range signal received from sensor or switch assembly)

Circuit malfunction, Accelerator Position Sensor failure,
Accelerator Pedal Dual Contact Position Switch failure, ECM failure

0406 INT/AIR volume (excessively high signal from Mass Air Flow Sensor)
Air Duct, Charge Air cooler, Variable Nozzle Turbo Charger Control System,
Variable Nozzle Turbo Charger, Mass Air Flow Sensor failure, Circuit malfunction

0407 Crankshaft Position Sensor
Circuit, Sensor or ECM failure

0502 Battery voltage (excessively high voltage sent to battery)
Incorrect jump starting, Battery, Alternator, ECM

0504 Automatic Transmission Communication Line

(ECM receives incorrect voltage from Transmission ECM)
Circuit malfunction, Automatic Transmission ECM

0505 No faults detected
Monitored circuits are operating normally

0701 Camshaft Position Sensor
(incorrect signal from the Injection Pump Control Unit)
Refer to Injection Pump Control Unit
Circuit malfunction, Injection Pump Control Unit

0702 Top Dead Centre Pulse Signal
(incorrect signal from the Injection Pump Control Unit)

Refer to Injection Pump Control Unit
Circuit malfunction, Injection Pump Control Unit

0703 Pump Communication Line
(incorrect signal from the Injection Pump Control Unit)
Refer to Injection Pump Control Unit
Circuit malfunction, Injection Pump Control Unit

0704 Spill Valve Circuit
Circuit malfunction, Injection Pump Control Unit

0705 Pump Control Module
Circuit malfunction, Injection Pump Control Unit failure

0706 Spill Valve

Circuit malfunction, Spill Valve, Injection Pump Control Unit

0707 Fuel Injection Timing Control System
Circuit malfunction, Injection Pump Control Unit failure, Poor fuel quality

0802 Barometric Pressure Sensor (built into the ECM)
Internal circuit malfunction, ECM failure

0804 ECM internal input signal processing function malfunctioning
ECM failure

0807 Brake Light Switch
Circuit malfunction, Switch failure


0901 ECM Failure (calculation function is malfunctioning)
Internal IC failure

0902 ECM Relay (incorrect voltage received by the ECM from the relay)
Main Relay malfunction, Circuit malfunction

0903 ECM Internal input signal processing function malfunctioning
ECM failure

0905 Turbo Pressure
Circuit malfunction, Charge Air Pressure Sensor failure

1003 EGR Volume Control Valve
Circuit malfunction, EGR Volume Control Valve failure

1004 Fuel Cut System
Circuit malfunction, Injection Pump Control Unit failure, ECM failure

1401 to
1408 Nissan Anti Theft System



Diagnostic link connector, the white connector just to the left and down from bonnet release lever.

Tony
Last edited by YNOT; 5th September 2010 at 11:48 AM. Reason: making it easier to read

[y61patrol]

Looks like MAF has bitten dust.

Went to nissan today and they said i couldnt just buy the MAF they said that i would have to buy the intake piping it sits in aswell.

Has anyone else had to do this when replacing the MAF?

[macca86]

You can buy a maf Nissan are liers

[matto9018]

LOL at Nissan... PM Nizzbits and he'll give you good price. I got mine for 350ish

Cheers

[Yendor]

The first two codes more then likely set when you had the MAF unplugged and engine running. Clear the codes and see if they reset.

Although if you have had the vehicle since new and the MAF hasn't been replaced it would probably be a good idea to replace it regardless or at least try a known good one in from another vehicle.

In addition to the other items mentioned above check your exhaust system for blockages.

[happygu]

You definitely can just buy the MAF Sensor..... Sometimes the Nissan Fast System is a little difficult to work out the right bits, and it comes down to the experience of the guy behind the desk.

I struggled and struggled to get a new piece of rubber for the outer edge of my sidestep, as it got ripped by a stick. The Fast System showed that you could buy the whole step, the end caps, and the inner rubber. It turns out there is a mistake in the system, and the arrow should be pointing to the outer rubber, and it was only that I looked at the picture on the screen, and pointed out the idiocy of being able to buy the inner side rubber that would never get damaged as opposed to the outer rubber, which is the one that always gets damaged, that we worked out there must be an error. Ordered it in, and hey presto....it was the outer rubber.

Gary from Nizzbits is the go - he will help you out.

Mic