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Nissan Murano 2003 Won't Throttle - Car Talk - Nairaland

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Nissan Murano 2003 Won't Throttle by wiseguy(m): 9:21am On Dec 31, 2017
Hello Nairalanders, I have a problem with my murano. The car starts and revs fine but won't throttle even when you pedal all the way down. The code suggests it is either the injector head or pedal position sensor. I was asked to reprogram first to see if it will correct the problem but the programmer said he couldn't communicate with the ECU after trying with three different equipments and then concluded that the brainbox is dead and will need to be changed. My dilemma is if it is the brainbox, how come it's starting very well and running except that you can't throttle the car. Any ideas, suggestions or solutions is welcomed. Thanks.
Re: Nissan Murano 2003 Won't Throttle by mayor2013: 9:44am On Dec 31, 2017
wiseguy:
Hello Nairalanders, I have a problem with my murano. The car starts and revs fine but won't throttle even when you pedal all the way down. The code suggests it is either the injector head or pedal position sensor. I was asked to reprogram first to see if it will correct the problem but the programmer said he couldn't communicate with the ECU after trying with three different equipments and then concluded that the brainbox is dead and will need to be changed. My dilemma is if it is the brainbox, how come it's starting very well and running except that you can't throttle the car. Any ideas, suggestions or solutions is welcomed. Thanks.

Post your scan result here.But something just caught my attention if he says he couldn't establish a communication between the scan tool and the ECU. how then was he able to pull out a fault error or was he guessing
Re: Nissan Murano 2003 Won't Throttle by wiseguy(m): 10:04am On Dec 31, 2017
The scan tool was able to pull out errors but when he connected two other devices that looked like computers to program the ECU, he got a communication failure message.
The codes are:
P2122
P2128
P2127
P2138
P1229
P0223
P0123
P2135
P1800
P1111
P0340
P0550
P0118
P0451
Re: Nissan Murano 2003 Won't Throttle by mayor2013: 10:07am On Dec 31, 2017
wiseguy:
The scan tool was able to pull out errors but when he connected two other devices that looked like computers to program the ECU, he got a communication failure message.
The codes are:
P2122
P2128
P2127
P2138
P1229
P0223
P0123
P2135
P1800
P1111
P0340
P0550
P0118
P0451

All these codes on only one car or are we talking about two cars here grin kindly post the description to the codes. Has the ecu been changed that he wants to programme the ecu

1 Like

Re: Nissan Murano 2003 Won't Throttle by Lexusgs430: 11:30am On Dec 31, 2017
wiseguy:
The scan tool was able to pull out errors but when he connected two other devices that looked like computers to program the ECU, he got a communication failure message.
The codes are:
P2122
P2128
P2127
P2138
P1229
P0223
P0123
P2135
P1800
P1111
P0340
P0550
P0118
P0451

Only one car all this plenty fault codes? It's needs specialist attention......
Re: Nissan Murano 2003 Won't Throttle by wiseguy(m): 11:34am On Dec 31, 2017
mayor2013:


All these codes on only one car or are we talking about two cars here grin kindly post the description to the codes. Has the ecu been changed that he wants to programme the ecu
Almost all the codes are saying the same thing pointing at the throttle/pedal sensor. One is pointing at the camshaft sensor but that has been changed. The ECU was not changed but the mechanic did some work on the car like changing the pulley and crankshaft seal before the incident. When the mechanic finished the car started well but after some time could not throttle. So the suggestion to reprogram came up. But the programmer now says he can't communicate with the ECU and therefore the ECU is bad.
Re: Nissan Murano 2003 Won't Throttle by obekediamondfuto(m): 12:00pm On Dec 31, 2017
wiseguy:
The scan tool was able to pull out errors but when he connected two other devices that looked like computers to program the ECU, he got a communication failure message.
The codes are:
P2122
P2128
P2127
P2138
P1229
P0223
P0123
P2135
P1800
P1111
P0340
P0550
P0118
P0451

omo are these PIDs for one vehicle?
Daunting Car issue #2
Re: Nissan Murano 2003 Won't Throttle by Kashif(m): 12:13pm On Dec 31, 2017
wiseguy:
The scan tool was able to pull out errors but when he connected two other devices that looked like computers to program the ECU, he got a communication failure message.
The codes are:
P2122
P2128
P2127
P2138
P1229
P0223
P0123
P2135
P1800
P1111
P0340
P0550
P0118
P0451

With this array of codes, it could be the ECU really.

But before he proceeds to replace ECU, he should ground a couple of TPS pins and see if some if the codes change. If they don't, then my money is on the ECU.

Shalom
Re: Nissan Murano 2003 Won't Throttle by mayor2013: 3:07pm On Dec 31, 2017
Kashif:


With this array of codes, it could be the ECU really.

But before he proceeds to replace ECU, he should ground a couple of TPS pins and see if some if the codes change. If they don't, then my money is on the ECU.

Shalom

If it is as easy as that this job for dey over sweet o grin
Re: Nissan Murano 2003 Won't Throttle by Kashif(m): 4:37pm On Dec 31, 2017
mayor2013:


If it is as easy as that this job for dey over sweet o grin

Yes, it is that easy. It is an easy and logical diagnosis. I use it, and it is solid.

You can ground or short signal voltage to power. Paper clips work well. Straighten and use it to short reference and signal female wire connectors from ECU.

Depending on which you use, the ECU will either set high or low voltage code. The idea is to send a known error to the ECU and see how it reacts. If the ECU is not able to tell that it's signal is out of range, then something is wrong with it. You can also detect any open or shorts this way.

It's street smart!

PS: in my initial post, I meant the TPS cables from the ECU
Re: Nissan Murano 2003 Won't Throttle by sultaan(m): 6:17am On Jan 01, 2018
Your mechanic messed your car up when he worked on it you may need someone else to look through every th ing he to u he'd from the begining
Re: Nissan Murano 2003 Won't Throttle by wiseguy(m): 9:50pm On Jan 01, 2018
Update: Finally, the ECU was changed and the car came back to normal. Thanks everyone.

3 Likes

Re: Nissan Murano 2003 Won't Throttle by Kashif(m): 10:17pm On Jan 01, 2018
wiseguy:
Update: Finally, the ECU was changed and the car came back to normal.
Thanks everyone.

Congrats! With such army of codes, the ECU had got a mind of it's own.

1 Like

Re: Nissan Murano 2003 Won't Throttle by Cutetmoney(m): 8:20pm On Aug 05, 2019
wiseguy:
Hello Nairalanders, I have a problem with my murano. The car starts and revs fine but won't throttle even when you pedal all the way down. The code suggests it is either the injector head or pedal position sensor. I was asked to reprogram first to see if it will correct the problem but the programmer said he couldn't communicate with the ECU after trying with three different equipments and then concluded that the brainbox is dead and will need to be changed. My dilemma is if it is the brainbox, how come it's starting very well and running except that you can't throttle the car. Any ideas, suggestions or solutions is welcomed. Thanks.
Wanted to contact U but I couldn't. I'm having same issues now
Re: Nissan Murano 2003 Won't Throttle by Asunaky: 9:41am On Aug 06, 2019
wiseguy:
Hello Nairalanders, I have a problem with my murano. The car starts and revs fine but won't throttle even when you pedal all the way down. The code suggests it is either the injector head or pedal position sensor. I was asked to reprogram first to see if it will correct the problem but the programmer said he couldn't communicate with the ECU after trying with three different equipments and then concluded that the brainbox is dead and will need to be changed. My dilemma is if it is the brainbox, how come it's starting very well and running except that you can't throttle the car. Any ideas, suggestions or solutions is welcomed. Thanks.

I deal on brainbox (Ecu ).. it could be brainbox or wouldn't but I suggest u get a good nissan electrician... we have too many fake electricians here in Nigeria that have no Idea about nissan. . Or u can text me on whatsapp for a recommendation
Re: Nissan Murano 2003 Won't Throttle by Cutetmoney(m): 9:43am On Aug 19, 2019
wiseguy:
Hello Nairalanders, I have a problem with my murano. The car starts and revs fine but won't throttle even when you pedal all the way down. The code suggests it is either the injector head or pedal position sensor. I was asked to reprogram first to see if it will correct the problem but the programmer said he couldn't communicate with the ECU after trying with three different equipments and then concluded that the brainbox is dead and will need to be changed. My dilemma is if it is the brainbox, how come it's starting very well and running except that you can't throttle the car. Any ideas, suggestions or solutions is welcomed. Thanks.
Bro, I am having this same issue with my 2006 Murano
Re: Nissan Murano 2003 Won't Throttle by autologic: 3:03pm On Aug 19, 2019
Cutetmoney:

Bro, I am having this same issue with my 2006 Murano
Why not create a fresh thread to gain more attention
Re: Nissan Murano 2003 Won't Throttle by Cutetmoney(m): 12:56pm On Aug 20, 2019
autologic:

Why not create a fresh thread to gain more attention
I've done that previously and I was mislead to get a gearbox, by one Tech, which am still regretting
Re: Nissan Murano 2003 Won't Throttle by obekediamondfuto(m): 2:38pm On Aug 20, 2019
Cutetmoney:
I've done that previously and I was mislead to get a gearbox, by one Tech, which am still regretting

I feel ur pain BRO.

1 Like

Re: Nissan Murano 2003 Won't Throttle by Cutetmoney(m): 10:49pm On Aug 22, 2019
obekediamondfuto:


I feel ur pain BRO.
Thanks Bro, but What I actually need now is Solution
Re: Nissan Murano 2003 Won't Throttle by autologic: 9:17am On Aug 23, 2019
Cutetmoney:
I've done that previously and I was mislead to get a gearbox, by one Tech, which am still regretting
But I explicitly preach a whole epistle advicing you against fallen victim to sugesstion of thowing parts just based on mere codes scanning to solve problem,, especially for problem that has not been seen and fully tested to avoid story that touches the heart but u wouldn't listen .
(https://www.nairaland.com/509862/murano-transmission-problem/2)
Re: Nissan Murano 2003 Won't Throttle by Cutetmoney(m): 9:20am On Nov 21, 2019
autologic:

But I explicitly preach a whole epistle advicing you against fallen victim to sugesstion of thowing parts just based on mere codes scanning to solve problem,, especially for problem that has not been seen and fully tested to avoid story that touches the heart but u wouldn't listen .
(https://www.nairaland.com/509862/murano-transmission-problem/2)
Thanks a lot for Ur advice, it's been fully restored (fixed) I even had to drive it from Anambra to Abuja and back to Anambra for proper testing(test running)
Re: Nissan Murano 2003 Won't Throttle by autologic: 9:38am On Nov 21, 2019
Cutetmoney:

Thanks a lot for Ur advice, it's been fully restored (fixed) I even had to drive it from Anambra to Abuja and back to Anambra for proper testing(test running)
Thanks for the feedback.it is good to hear that your car is fine now
Re: Nissan Murano 2003 Won't Throttle by samintegrity(m): 10:18am On Nov 21, 2019
Cutetmoney:

Thanks a lot for Ur advice, it's been fully restored (fixed) I even had to drive it from Anambra to Abuja and back to Anambra for proper testing(test running)

Bro what actually was the problem? And what was the fix? You should also hint us nau for benefits of those faced with similar issues

Thanks

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