Hi All,
I dropped off my S3 at VAS Motion in Guildford on Wednesday to go in for a Revo stage 2 remap, giving that it was only £60 to do so for the software and then an hours labour on top. They did the Revo stage 1 remap (B6 F9 T4) and Revo CAI (Ceramic) for me before of which I rate them both very highly as well as the garage, I also had the pre-cat material removed a month ago as well.
I had a P0642/17026/001602: Sensor Voltage A Circuit Low EML come on a couple of weeks ago which I cleared, it came back a week later but then it cleared itself (the car still drove/drives fine). I mentioned it to the guys who said that they'll happily look into it for me before doing the stage 2, but it would obviously add to the labour cost which I said was fine.
It's also worth mentioning that when they did the stage 1 & CAI in April, they did a health check prior to the work of which there was a stored fault regarding the intake manifold. They tried a fix which did the trick at the time and so they carried on with the work.
So an hour after dropping my car off I received a call from VAS saying that they've done some diagnostics and when they scanned the car for stored faults, they found the voltage fault I mentioned above as well as the same intake manifold fault which was present when I went in for the stage 1. After investigating a little further, they concluded that the two faults were linked and that it was due to my intake manifold wearing, causing a drop in pressure which the motor struggles to deal with, leading to the other fault with a drop in voltage (this is all beyond me hence why I may not have explained it perfectly).
Gavin the head mechanic said that it's nothing chronic right now but advised to get the intake manifold and motor (they're both worth replacing together apparently) done before going stage 2, just to cover their @ss I guess. Part are around £500 and it would be four hours labour, so it would be just shy of a grands work which is really ****ing annoying to say the least! Especially when I'm trying to save up for stage 2+ parts (mainly the clutch), Thailand and need the A/C Compressor replacing as well..
I got the stage 2 put on anyway as I'll have the other work done asap and I was surprised at the difference, considering that it's only a 15-20bhp & 20-30lbs increase over stage 1. They changed the settings to B8 F8 T5 and it's only 4500rpm+ where you notice the increased power with an extra push in the back over stage 1 which I'm happy with. I can't wait to see what stage 2+ is like, as it's meant to be more of a jump then from stock to stage 1 which was already a big increase! VAS map it on the road but once I go stage 2+, I'll get it RR after but hats off to them like before, they're really friendly and helpful guys who keep you in the loop and know what they're on about.
I have very little mechanical knowledge so any thoughts on the below please:
I dropped off my S3 at VAS Motion in Guildford on Wednesday to go in for a Revo stage 2 remap, giving that it was only £60 to do so for the software and then an hours labour on top. They did the Revo stage 1 remap (B6 F9 T4) and Revo CAI (Ceramic) for me before of which I rate them both very highly as well as the garage, I also had the pre-cat material removed a month ago as well.
I had a P0642/17026/001602: Sensor Voltage A Circuit Low EML come on a couple of weeks ago which I cleared, it came back a week later but then it cleared itself (the car still drove/drives fine). I mentioned it to the guys who said that they'll happily look into it for me before doing the stage 2, but it would obviously add to the labour cost which I said was fine.
It's also worth mentioning that when they did the stage 1 & CAI in April, they did a health check prior to the work of which there was a stored fault regarding the intake manifold. They tried a fix which did the trick at the time and so they carried on with the work.
So an hour after dropping my car off I received a call from VAS saying that they've done some diagnostics and when they scanned the car for stored faults, they found the voltage fault I mentioned above as well as the same intake manifold fault which was present when I went in for the stage 1. After investigating a little further, they concluded that the two faults were linked and that it was due to my intake manifold wearing, causing a drop in pressure which the motor struggles to deal with, leading to the other fault with a drop in voltage (this is all beyond me hence why I may not have explained it perfectly).
Gavin the head mechanic said that it's nothing chronic right now but advised to get the intake manifold and motor (they're both worth replacing together apparently) done before going stage 2, just to cover their @ss I guess. Part are around £500 and it would be four hours labour, so it would be just shy of a grands work which is really ****ing annoying to say the least! Especially when I'm trying to save up for stage 2+ parts (mainly the clutch), Thailand and need the A/C Compressor replacing as well..
I got the stage 2 put on anyway as I'll have the other work done asap and I was surprised at the difference, considering that it's only a 15-20bhp & 20-30lbs increase over stage 1. They changed the settings to B8 F8 T5 and it's only 4500rpm+ where you notice the increased power with an extra push in the back over stage 1 which I'm happy with. I can't wait to see what stage 2+ is like, as it's meant to be more of a jump then from stock to stage 1 which was already a big increase! VAS map it on the road but once I go stage 2+, I'll get it RR after but hats off to them like before, they're really friendly and helpful guys who keep you in the loop and know what they're on about.
I have very little mechanical knowledge so any thoughts on the below please:
- Could a drop in the intake manifold pressure cause a difficult start up?
- Could this potentially just be a bad case of being coked up which without taking it apart, make it look like a worn intake manifold instead?
- Is there a better intake manifold I get could as I don't want the same problem further on down the line?
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