Date: Wed, 15 Jan 2003 18:06:46 +0000 From: Grunff <grunffnopsam.com> Subject: Re: bypass valve for saab 900LPT
O_P wrote: > I just noticed my compressor bypass valve (CBV) has gone bad. This valve > returns the air to the turbo compressor inlet for reuse. > I would like to replace it with one that vents the pressurised air directly > to atmosphere.(blow off valve,BOV ??) Question is can I do this. There are > some WWW-sites stating that this would confuse the air mass meter(AMM) when > you let the once measured air out of the system. > A friend of mine told me that I shouldn't mind that, because the valve > works only in a transient situation and in transient situation the AMM is > ignored by the ECU which uses instead fixed control information stored in > it's PROM. The question is, why do you want to replace the bypass with a BOV?? What possible advantage could that give you? -- Grunff