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2000 Vauxhall Zafira not running right

Tiny
DTLM0
  • MEMBER
  • 2000 VAUXHALL ZAFIRA
  • 4 CYL
  • 2WD
  • MANUAL
  • 129,000 MILES
Hi my car does not run right, it ticks over ok, it drives ok on high revs, but when you push excelerator it flutuates up and down like its hunting, ive had four machanics look at it, it has failed mot on lamner sencor this has been renewed also air flow meter and throtle bodyall renewed, im at a loss please can you help many thanks dave
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Thursday, May 27th, 2010 AT 6:24 PM

10 Replies

Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
Have the throttle position sensor checked or replaced
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Sunday, May 30th, 2010 AT 3:56 AM
Tiny
DTLM0
  • MEMBER
  • 10 POSTS
Hi dave h thanks for your reply if its not the throtle censor could it be the ecu playing up thanks dave
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Sunday, May 30th, 2010 AT 10:26 AM
Tiny
DTLM0
  • MEMBER
  • 10 POSTS
Hi dave h thanks for your reply is the throtle sensor on the throtle body on the vauxhall zafira thanks dave
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Sunday, May 30th, 2010 AT 10:36 AM
Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
It could be the computer .. but in my experience the computer would be the last thing to replace .. I would definately go for the TPS or check for any vacuum leaks on the engine even a pinhole leak on a vacuum line could cause these symptoms


https://www.2carpros.com/forum/automotive_pictures/266999_AAA2_1151.png

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Monday, May 31st, 2010 AT 4:59 AM
Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
Yes .. the throttle position sensor is located on the throttle body


https://www.2carpros.com/forum/automotive_pictures/266999_AAA2_1152.png

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Monday, May 31st, 2010 AT 5:01 AM
Tiny
DTLM0
  • MEMBER
  • 10 POSTS
Hi dave h thanks for your reply I have changed the throtle body and car is the same hope you can help thanks dave
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Monday, May 31st, 2010 AT 8:27 AM
Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
Throttle body will not come with a new TPS on it. The tech will have used your old one. Check if he replaced the TPS?
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Wednesday, June 9th, 2010 AT 4:30 AM
Tiny
DTLM0
  • MEMBER
  • 10 POSTS
Hi dave h the machanic changed the trottle body with a different tps and car runs the same no difference and checked again for air leaks so im going to send the ecu unit away but I need your help again please how do you remove the transponder iv'e been told you have to put key in ignition turn once then put a rod in some where but I have no idea please can you help me once again many thanks dave
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Saturday, June 26th, 2010 AT 7:07 PM
Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
Which transponder ? you do not need to remove the Immoboliser transponder to remove the ECU ?


https://www.2carpros.com/forum/automotive_pictures/266999_266999_smiley5_8_7.png

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Sunday, June 27th, 2010 AT 3:59 AM
Tiny
DTLM0
  • MEMBER
  • 10 POSTS
Hi dave h thanks for your reply im sending off my ecu and they need my transponder by the ignition and they also need my ignition key iv'e taken off the cowl around the steering colume please can you tell me how do I get the transponder off im at a loss once again many thanks dave
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Monday, June 28th, 2010 AT 5:34 PM

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