Over Rev report query - 997 gts - Page 3 - 911/Carrera GT - PistonHeads UK

Hi All I am in the process of buying a really nicely spec'd GTS from an OPC and they have today sent me details of the over revs. About half way down the report (between ignition in Rev range 2 & 3) it says M120_Misfire counter for every ignition 3307 Does anyone have any idea what this code means and whether I should be concerned? OPC says they have serviced the car and it is running within normal parameters with no fault codes. It has passed the inspection and will come with 2 year porsche warranty. For information the report shows 360 ignitions in Rev range 1 and no incursions in any of the other ranges. Car is very low mileage (5k) and with fantastic options including carbon fibre bucket seats, alcantara with extended leather, Auto dimming mirrors and rain sensors, Bose, Clear tail lights, PCM with Nav, B-tooth and I-pod connection, Park Assist, Rear Seats, Colour coded side skirts, front and rear spoiler lip etc. Sport Chrono, And Sports shifter. These cars seem to be holding their money (read - hope I haven't overpaid!) and with this spec,mileage and condition I think will be hard to find elsewhere. I want to go into this with my eyes wide open so any pointers or help would be gratefully received. Thanks a lot.

get it bought rapidly. not many with that spec and any rr activity below level 4 irrelevant

IMIA said: get it bought rapidly. not many with that spec and any rr activity below level 4 irrelevant Deposit is down & I'm supposed to be collecting on Sat so I don't think I'll get gazumped. Just concerned about 'misfires' as I've not seen this on a Rev range report before.

Shiverman said: IMIA said: get it bought rapidly. not many with that spec and any rr activity below level 4 irrelevant Deposit is down & I'm supposed to be collecting on Sat so I don't think I'll get gazumped. Just concerned about 'misfires' as I've not seen this on a Rev range report before. two year warranty so not an issue - have you asked them?

IMIA said: two year warranty so not an issue - have you asked them? I figured 2 years warranty so I am covered but would like to know what 3307 misfires means. Coil packs? Other problems? The OPC have said The misfire counter is info correlated by the control unit and is only monitored info. The way the info is gathered changes on VALS and the form it is stored so it cannot be manipulated (hence the misfire counter is in the middle of the over rev info). There are no fault codes so the engine is running within it normal parameters. Which doesn't mean anything to me - lol!

Shiverman said: IMIA said: two year warranty so not an issue - have you asked them? I figured 2 years warranty so I am covered but would like to know what 3307 misfires means. Coil packs? Other problems? The OPC have said The misfire counter is info correlated by the control unit and is only monitored info. The way the info is gathered changes on VALS and the form it is stored so it cannot be manipulated (hence the misfire counter is in the middle of the over rev info). There are no fault codes so the engine is running within it normal parameters. Which doesn't mean anything to me - lol! ask to speak to a tech. thats just unintelligible drivel!

IMIA said: ask to speak to a tech. thats just unintelligible drivel! That was from the workshop controller! Think I will ring a couple of indies I've used and see if they can shed any light.

IMIA said: get it bought rapidly. not many with that spec and any rr activity below level 4 irrelevant It's relevant because, as you probably know, OPC won't renew warranty with hits in RR3 or above without further investigation. With RR1 hits only this car is fine. Never heard of the other issue before.

m33ufo said: IMIA said: get it bought rapidly. not many with that spec and any rr activity below level 4 irrelevant It's relevant because, as you probably know, OPC won't renew warranty with hits in RR3 or above without further investigation. With RR1 hits only this car is fine. Never heard of the other issue before. well thats changed. It was only RR 5 two years ago for warranty renewal. Then RR 4 last year. Interesting they've moved it to RR3 as they tried to use this as excuse to not honour a warranty claim i had as my car suffered rr 1,2,3 just before its engine let go. 9e advised me the rr were as a result of the liner melting but Porsche argued otherwise

Could a failing/failed coil pack cause the misfires? If so it's not really a worry, 3,000 ignitions is 1,000 revolutions of the engine, so not many seconds of misfiriness in the scheme of things.

thegoose said: Could a failing/failed coil pack cause the misfires? If so it's not really a worry, 3,000 ignitions is 1,000 revolutions of the engine, so not many seconds of misfiriness in the scheme of things. So one minute of misfires at tickover? And a lot less time if being driven. Doesn't seem so bad when you explain it that way. Thanks for your input Goose.

If this is the white car from OPC Swindon, you just beat me to it! Fantastic spec and car! Well done.

Shiverman said: thegoose said: Could a failing/failed coil pack cause the misfires? If so it's not really a worry, 3,000 ignitions is 1,000 revolutions of the engine, so not many seconds of misfiriness in the scheme of things. So one minute of misfires at tickover? And a lot less time if being driven. Doesn't seem so bad when you explain it that way. Thanks for your input Goose. Err, don't assume I'm right, I was speculating. Worth asking if that is what the data means though. Enjoy your car when you get it too.

Hi Stewy - yes this was the OPC Swindon car. Wasn't actually planning on buying, but once I saw it realised I couldn't pass it by with that spec and mileage. I hope you find your ideal one soon - they seem to be great cars. Hi TheGoose - have rung a specialist and they are of the opinion that even things like trying to start the car on a flat battery can cause the misfires which are then logged in the ECU. Car was owned by a collector so this is possible. Their feeling from them was if it has been serviced and passes Porsche criteria for warranty then they would have no concerns with this. Think I now need to start to get excited about Saturday!!

Shiverman said: Hi Stewy - yes this was the OPC Swindon car. Wasn't actually planning on buying, but once I saw it realised I couldn't pass it by with that spec and mileage. I hope you find your ideal one soon - they seem to be great cars. Hi TheGoose - have rung a specialist and they are of the opinion that even things like trying to start the car on a flat battery can cause the misfires which are then logged in the ECU. Car was owned by a collector so this is possible. Their feeling from them was if it has been serviced and passes Porsche criteria for warranty then they would have no concerns with this. Think I now need to start to get excited about Saturday!! Thats the way. Get excited and stop worrying. Hope the weathers good for you and the car is great.

Could it be it was out of fuel and someone tried cranking it? Or perhaps if a plug lead was off or something for a short time during a service? As its only a few thousand reports I wouldn't worry too much. If it launches itself you will be covered.

red_slr said: Could it be it was out of fuel and someone tried cranking it? Or perhaps if a plug lead was off or something for a short time during a service? As its only a few thousand reports I wouldn't worry too much. If it launches itself you will be covered. That's exactly the thoughts of the specialist I called. http://www.pistonheads.com/gassing/imgs/10.gif As the previous poster said I need to start getting excited and not worrying! Thanks everyone for your contributions and I'll post some pictures up once I collect it.

Pics!!!

Pics seconded! Have a great day on Saturday collecting it. I can remember collecting my GTS from 911 Virgin and the exciting build up to 'the day'! Sounds a lovely spec car and sure you'll love it. One upgrade you need to consider is the Sharkwerks rear silencer bypass to give it a proper 911 soundtrack as the 997.2 PSE is simply too quiet. Lots of GTS owners have gone down this route. Enjoy!

Grrrrrr. Pick up delayed by a week due to cock up from the OPC with plate transfers. Pics will be delayed folks. Chris - I had read the posts on the sharkwerks and its definitely on my list. I think I'm going enjoy the car first for a few weeks and then add it once Im over the initial excitement & want more. Can you PM me a price when you get the chance?

Do consider that this will invalidate your warranty.

m33ufo said: Do consider that this will invalidate your warranty. I think Chris has covered this in the Sharkwerks post. If the problem is caused by the exhaust then yes it would invalidate the warranty, and I think I would need to discuss with the OPC as some seem more sympathetic than others to bits being changed Maybe mine will be more forgiving as they are mucking me around (fat chance!). I know it's a risk and I'll have to weigh that up at the time. I know that if I want to renew the warranty it would have to go back to standard.

Shiverman said: Grrrrrr. Pick up delayed by a week due to cock up from the OPC with plate transfers. Pics will be delayed folks. Ugh, cruel - hope they sort it out pronto.

Still no pictures.... Hope you are enjoying the GTS and let me know when you're ready for the better soundtrack!

Still no date on a pick up as the OPC is having issues not having the V5 back from Swansea. Hoping for a collection this weeknd but not guaranteed yet. Genuinely frustrated as I currently have the time to drive it and that won't last.

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Well Guys, Friday was the happy day and I finally collected my GTS. As I was waiting so long I decided to get Justin at Exclusive Car Care to detail the car. He visited it at the OPC showroom and we agreed a 2-stage polish and to then finish it with Gtechnic Crystal Seurm for a long lasting shine. He did a fantastic job and all I can say is WOW the car looks better than new. No swirls on the paint and a flawless finish with some seriously gleaming wheels. 200 miles in so far and I'm loving it. The manual gearbox change is so crisp and the engine so free revving. The car seems slower with PSE switched on, but maybe thats just me? Anyway a few more runs and I'll hopefully know more about this. Does anyone else with PSE have any thoughts or comments? Anyway, spec and the all important pictures. White GTS 2011, 4,800 miles Carbon Fibre backed bucket seats Sports Short Shift Sports chrono plus Colour coded side skirts and front/rear splitters Clear tail lights Auto dimming rear view mirrors with rain sensor Parking sensors Rear seats (daughter is very happy already after not being able to travel in my Cayman) Extended leather to dash and doors and extended alcantara Porsche logo on storage lid PCM 3 (with full postcode upgrade) Bose Bluetooth iPod/Aux connectivity Grey top tint Full 4-year service and 2 years Porsche warranty. Edited by Shiverman on Sunday 3rd May 09:11

That's a truly lovely thing! Enjoy

Looks epic and just like mine (other than the gearstick!) Enjoy enjoy enjoy!

Thanks Guys - I promise I will enjoy it!!! Think I'm going to take it for it's first rain drive shortly.

Looks stunning, perfect wheel and body colour combination.

One thing I dislike generally are the chrome headlight washers. I've just bought some new covers from Porsche. They're only about £15 each and come finished in primer. Had them back from the paint shop on Friday (a freebie!), and will fit them this week sometime. A very cheap update. Did mine in Carrara to match the body but gloss black would suit it too - even more so on yours with the black wheels. Just a thought

We recently had such a missfire code,the car eventually had a variocam issue,check cam angle sensor output on live feed (only on one bank as UK car US ROW cars have one on each bank dont know why!)

911Gary said: We recently had such a missfire code,the car eventually had a variocam issue,check cam angle sensor output on live feed (only on one bank as UK car US ROW cars have one on each bank dont know why!) Hi Gary - that's interesting and the first response from anyone on and off the forum to this question. Were there any other symptoms that pointed to checking the variocam?

911Gary said: We recently had such a missfire code,the car eventually had a variocam issue,check cam angle sensor output on live feed (only on one bank as UK car US ROW cars have one on each bank dont know why!) Hi Gary - that's interesting and the first response from anyone on and off the forum to this question. Were there any other symptoms that pointed to checking the variocam?

m33ufo said: One thing I dislike generally are the chrome headlight washers. I've just bought some new covers from Porsche. They're only about £15 each and come finished in primer. Had them back from the paint shop on Friday (a freebie!), and will fit them this week sometime. A very cheap update. Did mine in Carrara to match the body but gloss black would suit it too - even more so on yours with the black wheels. Just a thought Painted washers are a £138 option on the configurator!!! You've done exceptionally well at £30

Nurburgsingh said: Painted washers are a £138 option on the configurator!!! You've done exceptionally well at £30 Yes, they're a silly price. Just fit them, took all of 5 minutes. I know it's barely noticeable but the chrome just didn't work for me.

m33ufo said: Yes, they're a silly price. Just fit them, took all of 5 minutes. I know it's barely noticeable but the chrome just didn't work for me. TBH chrome hadn't really bothered me but maybe it will do now!! Look good in white but I can't see me making the change.

Shiverman said: TBH chrome hadn't really bothered me but maybe it will do now!! Look good in white but I can't see me making the change. I think most normal people would agree with you Very straightforward though and very inexpensive.

m33ufo said: I think most normal people would agree with you Very straightforward though and very inexpensive. How do you remove them ?

Steve Baker said: How do you remove them ? Hook something like a small right angled allen wrench into the chrome nozzle cover and pull upwards. Protect the painted area of the bumper cover with a cloth and clamp the black plastic nozzle which is now exposed below the nozzle cover. The nozzle cover clips into place at two points so you'll need a small flat head screwdriver to unclip. Then just pop on the new painted cover.

m33ufo said: Hook something like a small right angled allen wrench into the chrome nozzle cover and pull upwards. Protect the painted area of the bumper cover with a cloth and clamp the black plastic nozzle which is now exposed below the nozzle cover. The nozzle cover clips into place at two points so you'll need a small flat head screwdriver to unclip. Then just pop on the new painted cover.

That is one fantastic looking GTS. I have a white one as well but that is probably the perfect spec if I could go back in time. With that kind of mileage it's like a new car? Enjoy!

LF11 said: That is one fantastic looking GTS. I have a white one as well but that is probably the perfect spec if I could go back in time. With that kind of mileage it's like a new car? Enjoy! Thanks LF11. That why I couldn't really pass it by when I saw it. Am loving it so far (500 miles in) and the seats are so comfy if at times a touch awkward getting in/out of. Very special car imo.

Regarding the exhaust, I can't say it feels slower with PSE switched to loud. Feels exactly the same on mine. Lovely looking car, by the way. And I can recommend the SharkWerks bypass. It really improves the overall experience. Plenty of reviews and info in here about them. In quiet mode it sounds almost identical to stock. With PSE switched on it sounds glorious. Jack