Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[mandula]

Hello.

I've been annoued by this same fault for now half of year.

All started suddenly, I was driving to work at morning and after 1 kilometer, car went to limp mode.
Restarted the engine and everything was back to normal. After work, I was trying to start the car, but limp mode came on right away.
Couple of restartrs and everything was back to normal again.

I read fault codes and got these:

P1500 - Electronic Throttle Control Motor Failure
 (08) - Not present

P1550 - Electronic Throttle Control Power Management
 (04) - Not present

Since then, I've replaced sparks, oils, filters, lambda1, etc.
Also cleaned throttle body andreplaced/cleaned engine ventilation hoses

No difference.

Then I figured that fault could be on throttle body, so I replaced it with OEM throttle body.

Everything was fine, until these came up:

P0170 - Lean Exhaust
 (02) - Not present

P1525 - Limp Home Position Error
 (00) - Not present

P1550 - Electronic Throttle Control Engine Stop
 (08) - Not present

P1526 - Throttle Position no Adaption
 (08) - Not present

Lean exhaust must be because sometimes engine won't start right away when fault is on, so I tried to get it started and kept starter motor running maybe too long.
Usually engine does start right away when fault is on, but it goes to limp mode right away.

These are the latest fault codes I've been getting for last 4 months now:

P1525 - Limp Home Position Error
 (00) - Not present

P1550 - Electronic Throttle Control Engine Stop
 (08) - Not present

P1526 - Throttle Position Adaption Error
 (04) - Not present

and

P1525 - Limp Home Position Error
 (00) - Not present

P1550 - Electronic Throttle Control Power Management
 (04) - Not present

P1526 - Throttle Position no Adaption
 (08) - Not present

I can drive my car normally, maybe sometimes acceleration pedal "feels" funny and I've noticed that my fuel consumption have been risen from 8-9 l/100 km to 9-10 l/100 km since this fault has been on.

Also I have noticed that fault comes up (limp mode or engine won't fire up right away) when weather is moist and near 0-5 degrees of celcius.

Otherwise, only thing that reminds me of this problem (when its not showing itself) is that when I switch power on, dashboard shows yellow fault light, but it goes of if engine starts normally. And fuel consumption has risen.

Long story short, where do you guys/girls think I should look next to solve this problem?

I've attached some live data from my car, where I pump acc pedal on and off, just to see if there's any errors or wrong values.

Any help would be nice, because weather is going to worm up soon and more limp modes are expected..

Thanks!

Attachments are at next reply:

[mandula]

https://www.dropbox.com/s/ay29kb8v1prdcn8/ACC%20and%20APP%20sensors.jpg?dl=0 Above pic: Engine on. Below pic: Engine off.

https://www.dropbox.com/s/d67yag4r2s3xqqb/Livedata%202.3.2016%20Z22XE%20ACC%20sensors%200-100-0-100-0.xlsx?dl=0 Enngine off.

https://www.dropbox.com/s/5pb6v2fh0m2l2kb/livedata%2029.11.2015%20invalid%20throttle%20position.xlsx?dl=0 Engine on.

[Entwood]

Hope this helps   xlsx files can't be displayed. only JPG's

[mandula]

Thanks  Didn't know how to do that   

[Blueron]

I would start by replacing the cam sensor ( must be genuine Vauxhall )  my z22xe would show all different fault codes and keep going in and out of limp mode.Cam sensor replaced and all running fine again.

[mandula]

I would start by replacing the cam sensor ( must be genuine Vauxhall )  my z22xe would show all different fault codes and keep going in and out of limp mode.Cam sensor replaced and all running fine again.

Thanks for this advice!

Replacing of cam sensor has been on my to-do -list for a while now (even tough there has not been any fault indicating to it), I 've owned the car little over 1,5 years now and want to change all electric sensors before its too late. I drive a lot, car has 280000 km now and I bought it when there was 220000 km.

I try to get cam sensor replaced during this weekend, meanwhile if there is some guru that could check my live data's for obvious faults, I would appreciate that 

[mandula]

https://www.dropbox.com/s/ay29kb8v1prdcn8/ACC%20and%20APP%20sensors.jpg?dl=0 Above pic: Engine on. Below pic: Engine off.

https://www.dropbox.com/s/d67yag4r2s3xqqb/Livedata%202.3.2016%20Z22XE%20ACC%20sensors%200-100-0-100-0.xlsx?dl=0 Enngine off.

https://www.dropbox.com/s/5pb6v2fh0m2l2kb/livedata%2029.11.2015%20invalid%20throttle%20position.xlsx?dl=0 Engine on.

Sorry, I put wrong live data where it should be live data when engine is on. It seems to be engine off there. I'll put right one here when i get home from work. 

[mandula]

https://www.dropbox.com/s/ay29kb8v1prdcn8/ACC%20and%20APP%20sensors.jpg?dl=0 Above pic: Engine on. Below pic: Engine off.

https://www.dropbox.com/s/d67yag4r2s3xqqb/Livedata%202.3.2016%20Z22XE%20ACC%20sensors%200-100-0-100-0.xlsx?dl=0 Enngine off.

https://www.dropbox.com/s/5pb6v2fh0m2l2kb/livedata%2029.11.2015%20invalid%20throttle%20position.xlsx?dl=0 Engine on.

Sorry, I put wrong live data where it should be live data when engine is on. It seems to be engine off there. I'll put right one here when i get home from work. 

Not my day at all.. Above picture shows wrong voltages fot app  sensor 2, should be between 0,49 - 1,8 V..
Anyway, figured out that app sensors are fine. I'll check wirings and connectors also when I'm replacung cam sensor.