Hi everyone,

I have ready some threads on here with the similar problem, however with the codes that were given to me by Nissan, it seems like it is not related to the Crank or cam position sensor.

Someone else asked this with similar codes, but there was no response.

Can anyone verify what seems to be the problem? (Obviously there will be some variables)

Anyway, quick background:

Background

I'm from Down Under, and purchased a 2003 Nissan 350z Touring Auto (around 89,000KM), a bit over a month ago.

All was well until I was involved in an accident (front left hand damage) a week or so later...

I drove the car home and on the first corner, the Service Engine, TCS Off, and SLIP lights came on with the car slowing down to a halt and me not being able to accelerate.

I turned the engine off and turned it back on again, and the error disappeared. But the same problem arrose a short while later. Long story short, I was able to get it home.

Insurance covered everything and the car was sent to be repaired, however, whilst it looks brand spanking new, I have experienced numerous times of the mentioned lights turning on again (and hence be breaking down in the middle of the road...)

I took the car to Nissan on Monday, and got the car back this morning, and they said numerous codes were present during the scan, however they reset the ECU and drove the car but were not able to duplicate the faults, and the codes were not seen again.

As my luck would have it, again the car "broke down" on my way home.

What you can help with


The codes that they said were present are:

- P0550 Power Steering Pressure Sensor
- P2122 Accelerator Pedal Position Sensor 2
- P2138 Accelerator Pedal Position Sensor
- P1229 Sensor Power Supply

Now I originally thought that the cam/crankshaft position sensor was at fault and what needed to be replaced (it being very sensitive, I thought the crash may have affected it).

But looking from the codes, I am thinking throttle position sensor??

Can anyone tell me what needs to be fixed? As clearly what Nissan did by clearing the codes by reseting the ECU did not work.


tl;dr

And to get to the point...

I had a crash, and now whilst driving, the Service Engine, TCS Off, and SLIP lights came on, with the car slowing down to a halt and me not being able to accelerate.

I took it to Nissan, and they said the following codes came up:


- P0550 Power Steering Pressure Sensor
- P2122 Accelerator Pedal Position Sensor 2
- P2138 Accelerator Pedal Position Sensor
- P1229 Sensor Power Supply

All they did was reset the ECU (and cleared the codes), and they say they were not able to replicate the problem.

However the problem is still there.

Looking at the codes, can anyone tell me what needs to be fixed?


Also note, after they cleared the codes, and took if for a test drive, the redid the scan, and the following came up:

- P1705
- C1131

Thanks for reading and helping...I am hoping after this debacle I can finally enjoy my Zed....

 

From another post, I will be sure to check the brake fluid level and battery level tomorrow....

 

Due to the impact, I'd also confirm steering angle as well as abs sensors. The abs sensors may not be putting you into full limp mode, but the steering angle could cause you issues.

 

no, the problem is that when you get that 1229 code, that also goes to the TB. So your TB isnt getting power.

I had the same thing happen when I shorted my power steering pump sensor wire.

You need to check for shorts along the power steering pressure line at the harness. There are also a couple other things on that power feed line that could also be shorted. This is all documented in the service manual under the P1229 code as well as the wiring diagram showing that the TB is set to limp when there are those codes.

good luck

 

Nissan has the diagnostic codes. The fix is obvious.

 

He was able to catch it apparently.

 

Hi guys,

To wrap this issue up, it took more then a month, but it is finally resolved (touch wood).

And yes, more then a month!!!

Continuing from my first post, they replaced some parts with the acceleration/pedals (don't have the details on me right now), but that did not fix anything.

From the very first time I had the problem, I kept persisting that it might be a simple wiring issue.

Finally they said that they would check it, but then when I physically go in and talk to them a week later, they say they don't have the equipment to fix it. Ironic, since they are a Nissan dealer!

After having enough with this dealer, I take it to another one. I tell them my ordeal and what I think the issue maybe. They take a look at it straight away. A few days later (it was a weekend), they ring me up saying that they hopefully fixed it...

Yes, it was wiring issues! And they didn't charge a single cent!

I had to get pushed around my two Nissan dealers, until I finally got one who actually cared about their customers.

Hope you guys in the states don't face the problems I have had here in Aus!

 

well where was the wiring issue located, im going on a month now with the exact same codes. dealer told me i needed to replace Unified AC meter, ECU, TB, and APP senson $1200 later same issue! did they say exactly where the issue was im starting to pull my hair out

 

you ever find the cause for c1131

 

given that this post is 12.5 years old, and he hasnt logged in for 12 years... .doubt you will get an answer from him

 

Did you find a fix yourself? i’ve been having the same issue on my 08’ 350z changed the cam sensors, TBs and no fix even changed the rubber from the gas pedal and no solution, i also have a the c1131 code.