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Ari's list is the one to go with....
Posted by adamK (more from adamK) on Thu, 20 Jan 2011 08:11:33
In Reply to: Re: check that the wastegate is fully functional, Chris9k [Profile/Gallery]
, Wed, 19 Jan 2011 20:09:56
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Briefly touches on it, but if you connect a section of vacuum hose from the compressor nipple to the wastegate nipple, that in effect gives you base boost (as noel said....you can also just put a barb between the two hoses at the boost control valve). What this does, is tells you if your wastegate is in fact operating quasi-correctly. If you overboost in this manner...you have a problem with the wastegate, or wastegate actuator. Stop and fix this before you move onward to debug the BPC.
If the BPC is the culprit....what I'd HIGHLY recommend, is having your ECU sent to a tuner to be modified for using a T7 BPC. They are quicker, simpler and about 1/4 the price of a T5 valve. A reputable tuner should be able to modify your ECU, and flash software onto it for running a T7 valve for probably $100-$150. A new T7 valve is $60 or so, and making a wiring harness to move from a T5 to T7 valve is very cheap and straight forward; just head to a junkyard and find a donor car.
All in all, you can repair a failed T5 BPC cheaper, and with greater reliability going the T7 route, than you could by just buying another T5 valve.
Just my $0.02
posted by 129.33....
Posts in this Thread:
- '98 CSE cutting out, Chris, Wed, 19 Jan 2011 19:39:30
- Re: '98 CSE cutting out, Dale, Thu, 20 Jan 2011 10:55:57
- Re: '98 CSE cutting out, Chris, Thu, 20 Jan 2011 09:58:29
- Most likely the BPC is failing, Noel, Thu, 20 Jan 2011 05:13:07
- Re: '98 CSE cutting out, rob 94 aero, Wed, 19 Jan 2011 20:22:26
- check that the wastegate is fully functional, Ken Fisher, Wed, 19 Jan 2011 20:07:20
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