Hi, I fitted a HKS racing suction kit a week ago, which until today was working awesome, me being the overzealous fool that I am thrashed the *** of my car earlier causing it to go into limp mode (running at half boost pressure), I have a Dawes MBC on order and just wondered if there was a way to reset my ecu for normal driving until the MBC arrives?????

 

taking the battery off overnight will do it, although questioning why it did what it did might be an idea, instead of using a half-assed bleed valve to avoid the problem.

 

I am pretty confident it did it because of the increased boost caused my the induction kit. I have never before pushed out over 1.05bar, but since fitting the HKS Racing suction kit I have been experiencing upto 1.3bar with emergency cut back to 0.5bar for a few seconds then returning to normal, but I think this time I pushed it a little to much over the treshold causing it to go into permanent emergency mode (limp mode). The MBC is going to be merely as a precaution so I don't cross this boost threshold again. Thank you very much for your information anyway.

 

Spikes that big won't do your engine any good matey.

Fuel cut, or 'emergency cut back' as you termed it, is there for a reason, and you need to make sure you have sufficient fuelling before increasing the boost or you *could* be running dangerously lean.

 

I understand that this is seriously not good news at all, thats why i've read into boost controllers, and I know although by no means is the Dawes the best its seems the most sensible to try and limit the boost, I am not interested in raising the factory limit what so ever, I just want to run about 1 bar without the risk of it overboosting!!!

 

an induction kit can't possibly create 0.25bar of boost - christ if it flowed that much air don't you think they'd have em standard?

i've got the same filter on my 96 sti-ra and ive never seen much more than 1bar whatever i do...

 

i thought (the same principle as adjustable FPRs) the dawes can only increase boost?

 

aaaahhhh, fair enough.

sorry mate, I made the incorrect assumption that you wanted to increase boost.

screw it right out and tighten it until you get to your target boost. they are all much of a muchness, the dawes has a good reputation as far as mbc's are concerned, most of the bad rep comes from people being greedy.

 

forgot to add, put it inline so the ecu can still see what's going on but the dawes dumps the excess pressure.

 

Thanks very much, I have printed off instructions from the dawes website, I have also asked for pics of installation on another thread but if you could give me direction to a source that you know of I would be extremly grateful.

 

For an ECU reset have a look here

http://www.saxonfields.freeserve.co....iag%20Page.htm

 

Thanks for the info, I have no (check engine) light illuminated on the dash, I have called a mechanic friend and he is going to carry out a full diagnostic download on it for me, by the information that has been given to me, it is in LIMP MODE, and may just need a reset, obviously it will also need something doing as a preventative measure so it doesn't do it again, hence the purchase of the Dawes MBC,