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Have rensult megane dynamique 55 plate. Check injection and…

Customer Question
Second opinion] Have rensult...

Second opinion] Have rensult megane dynamique 55 plate. Check injection and service light comes on when start in morning, this started a few months ago but was randomly now and again. If i leave to run for 10 minutes all fine, runs perfect for rest of the day. Lately I'm having to leave it for longer before it settles down, and engine management light comes on now as well and happens every morning or if the car hasn't been driven for a few hours. Now twice this week check injection and engine management light have come on and car starts juddering while driving, then ok again after 5 minutes or so. Been checked 3 times comes up with fault with no.2 injector but no fault found. spark plugs fine throttle been cleaned.

Mechanic's Assistant: Does the light stay on, or does it blink?

It blinks, it did stay on for 2 days a couple of weeks ago but typically went off the day it was going to the garage

Mechanic's Assistant: What is the model of your '55 Renault?

Renault megane dynamique convertable

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

No had it checked twice by RAC, they were baffled. Went into garage it came up with fault with no2 inject the same as with the RAC but they couldn't find a fault either, they checked cleaned spark plugs and throttle and thought that might do the trick

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

No not really, just want an idea of whats wrong before i take it to renault garage and spend a fortune and then its still the same

Submitted: 7 months ago.Category: UK Car
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Answered in 55 minutes by:
11/27/2017
UK Auto Mechanic: Greg, Shop Owner replied 7 months ago
Greg
Greg, Shop Owner
Category: UK Car
Satisfied Customers: 7,483
Experience: 17 years Shop Owner /Technician. 27 years experience,
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Hi, I'm Greg (Indy-Tech).
Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.
Rgds Greg.

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UK Auto Mechanic: Greg, Shop Owner replied 7 months ago

Can you get me the codes that you now have in the management system.

if the check engine light says on after the engine starts and is running then you have a stored malfunction code or codes .

Let me know .

Greg

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Customer reply replied 7 months ago
Hi Greg, I don't know the codes. Engine management light was just flashing while the check injection service light was on, but today it stayed on permanent. Will be booking it in at Renault tomorrow. I will pass on your message when I speak to them. Thanks for replying. I will let you know the outcome.
UK Auto Mechanic: Greg, Shop Owner replied 7 months ago
Ok with it flashing this means it’s misfiring and should be sent into the shop ASAP before you have catalyst converter problems/damage.
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UK Auto Mechanic: Greg, Shop Owner replied 7 months ago
You will have also a few malfunction codes and when hooked up to a diagnostic scan tool you will know what is going on . You may only need an engine tune up . Spark plugs etc .
Need further advice with this issue then please get back to me anytime.
Kindest regards Greg
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