Will not run when warm says check injectors

Problem with your Megane? Can't find an answer? Workshop manuals and technical notes are in here.

Moderators: q292u, Ray, AndyAdmin, Stranger

Northerndj
Posts: 6
Joined: Thu Jun 04, 2015 10:43 pm
Currently Drives:: Renault Megaine 2

Will not run when warm says check injectors

Postby Northerndj » Fri Nov 25, 2016 3:29 pm

Help needed Car starts perfect when cold no issues until it starts to warm up then itstarts to splutter then stops and shows check injectors
now i no there are loads of threads on this the AA said is was the throttle body but that works fine when its cold.
its had a new crank sensor fitter
it has had the garages diagnostics on and it came up with

Petrol (K4M - Diagnose - MT/AT) DTC Description
0638 - Motorised throttle housing control - Present
0638 - Motorised throttle housing control - Intermittent
0335 - Engine speed sensor circuit; no engine speed signal or speed signal interference - Intermittent
0105 - Intake manifold pressure sensor - Intermittent
0105 - Inlet manifold pressure sensor circuit; voltage outside tolerance limits - Intermittent
0105 - Inlet mainfold pressure sensor circuit, coherence - Intermittent
0420DF - Unknown fault code
0420 - Catalytic converter; EOBD threshold for HC pollutant emission exceeded - Intermittent
0651 - Sensor supply voltage 2; internal electronic fault - Present

the pressure sensor has also been changed this car is driving me nuts now and were at the end of our teather
my only thought is its over choking eg temp sensore but the garage says thats working
any ideas ???

AlexB
Driving Legend
Posts: 4312
Joined: Tue Mar 22, 2005 8:17 pm
Currently Drives:: Renaultsport R.S.250 Cup

Re: Will not run when warm says check injectors

Postby AlexB » Fri Nov 25, 2016 10:28 pm

It's not "injectors", but "injection", meaning the injection computer. How did it happen that there are so many codes? What's the full story?
AlexB
(no, a different AlexB)

Northerndj
Posts: 6
Joined: Thu Jun 04, 2015 10:43 pm
Currently Drives:: Renault Megaine 2

Re: Will not run when warm says check injectors

Postby Northerndj » Sat Nov 26, 2016 12:41 am

Well it was working fine then the wife took it to work and as she pulled up it cut out, and would not start after some cranking the check injectors came on, so she called the AA he said it was the manifold (never checked it )
Items replaced
1. TDC sensor
2. Manifold
3 Air pressure sensor AA bust it trying to remove
the only thing I can think of is the Air Temp sensor
This is what happens
when call is cold it starts and runs fine until the temp gage starts to climb then it starts to splutter
then stops
leave for 20 mins and it will start again but only run for two mins then starts spluttering when is stops it smells rich eg smell of fuel
Oh the coil packs are also new
so I have been :banghead
Oh the codes were cleared and stayed clear until it starts to splutter sorry for spelling as not a good typist

Northerndj
Posts: 6
Joined: Thu Jun 04, 2015 10:43 pm
Currently Drives:: Renault Megaine 2

Re: Will not run when warm says check injectors

Postby Northerndj » Sat Nov 26, 2016 7:56 pm

latest update with another air intake housing
Petrol (K4M - Diagnose - MT/AT) DTC Description
0638 - Motorised throttle housing control - Intermittent
2120 - Pedal potentiometer track2;short circuit to ground - Present
0651 - Sensor supply voltage 2; internal electronic fault - Present

Petrol (K4M - Diagnose - MT/AT) (after last fault code deletion) DTC Description
0638 - Motorised throttle housing control - Intermittent
0651 - Sensor supply voltage 2; internal electronic fault - Present
0638 - Motorised throttle housing control - Intermittent
2120 - Pedal potentiometer track2;short circuit to ground - Present
0651 - Sensor supply voltage 2; internal electronic fault - Present

Northerndj
Posts: 6
Joined: Thu Jun 04, 2015 10:43 pm
Currently Drives:: Renault Megaine 2

Re: Will not run when warm says check injectors

Postby Northerndj » Mon Nov 28, 2016 6:29 pm

After various head scratching and testing we oppted for the the accelerator pedal we changed this then cleared the codes
and started the car to warm this up straight away saw a change but we held our breath and Bingo
:dance the car behaved as it should now were :driving again
Turns out this is common strange that

User avatar
q292u
Global moderator
Posts: 299
Joined: Mon Sep 05, 2016 9:45 am
Currently Drives:: 2003 Clio. The Megane died.
2001 Audi A2 1.4 SE
Location: UK

Re: Will not run when warm says check injectors

Postby q292u » Mon Nov 28, 2016 7:08 pm

Congratulations!
Shame you had to try all the other stuff before finding the solution to a "common" problem..

On a positive note: it's fixed!

AlexB
Driving Legend
Posts: 4312
Joined: Tue Mar 22, 2005 8:17 pm
Currently Drives:: Renaultsport R.S.250 Cup

Re: Will not run when warm says check injectors

Postby AlexB » Thu Dec 01, 2016 10:00 pm

Good thinking. One of the listed codes "short circuit to the ground" probably was causing secondary electrical problems. Well done!
AlexB
(no, a different AlexB)


Return to “Problems / Questions”

Who is online

Users browsing this forum: Google [Bot] and 53 guests