THE-350Z-NUT Posted May 8, 2012 Share Posted May 8, 2012 Hi, I was wondering if anyone had experienced the revs dropping when sat at idle once the engine is up to temperature? Is this a common fault? Any light shed on this would be great as my warranty is running out and I'm pulling my hair out . Many thanks Quote Link to comment Share on other sites More sharing options...
Lexx Posted May 8, 2012 Share Posted May 8, 2012 A cold engine idles at a higher rpm. Once the engine has warmed through, the idle will lower. It's not a fault. Quote Link to comment Share on other sites More sharing options...
Neilp Posted May 8, 2012 Share Posted May 8, 2012 What do you means revs dropping? They should settle with a/c off at 750ish I'm sure. Remeber when stationary she's breathing lots of very hot air and doesn't like it one bit. Quote Link to comment Share on other sites More sharing options...
Lexx Posted May 8, 2012 Share Posted May 8, 2012 What do you means revs dropping? They should settle with a/c off at 750ish I'm sure. Remeber when stationary she's breathing lots of very hot air and doesn't like it one bit. That's what I thought too Neil. Think it's about 950 when cold on initial start-up. Then drops to 750. Quote Link to comment Share on other sites More sharing options...
cmck13 Posted May 8, 2012 Share Posted May 8, 2012 What do you means revs dropping? They should settle with a/c off at 750ish I'm sure. Remeber when stationary she's breathing lots of very hot air and doesn't like it one bit. That's what I thought too Neil. Think it's about 950 when cold on initial start-up. Then drops to 750. Both correct +1 Quote Link to comment Share on other sites More sharing options...
THE-350Z-NUT Posted May 8, 2012 Author Share Posted May 8, 2012 The revs drop for a few seconds kinda sounds like the engine is struggling and the engine management light comes on when it feels like it, the fault code reads engine running lean? Quote Link to comment Share on other sites More sharing options...
M13KYF Posted May 8, 2012 Share Posted May 8, 2012 may require a new MAF sensor, or it may need cleaning, crc sensor cleaner is recommended for the maf Quote Link to comment Share on other sites More sharing options...
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