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1999 Renault Clio engine running lumpy

Tiny
WINGMANLEE
  • MEMBER
  • 1999 RENAULT CLIO
  • 4 CYL
  • 2WD
  • MANUAL
  • 78,000 MILES
Hi I have a renault clio 1.4rt its running a bit lumpy like when u put your foot on the throttle the revs dont pick up very well I have check for spark all the 4 plugs have spark but the AA man had a look said it was running a bit lean and he said there a blow near the front of the exhaust just before the lamda senser would that cause the car to run lumpy and do u think it could be the ecu giving problems? Just had another look found out it was the timming belt slip causing the engine to run lumpy
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Wednesday, March 24th, 2010 AT 5:00 PM

1 Reply

Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
Repair the exhaust leak. Check/clean or replace the MAF sensor for lean condition and check/replace air filter. Both of these can cause the problem . The ECU takes sensor readings and computes them into ideal running conditions. I would check everything else before replacing an ECU
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Thursday, March 25th, 2010 AT 4:56 AM

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