Friday, November 03, 2006 - 03:03 am, by: Simon Roberts(Simonr)
I know I seem to be asking some weird questions lately but please bear with me....
Does anyone have a guide (in English) to the various vacuum pipes that connect to the manifold? The pipes have numbers on either end which is helpful but I want to check that they are all actually connected to the right things. I have the Soarer bible but the 1JZ section is in Japanese.
I found out today that my heater doesn't work (it just started getting cold over here) and tried the VSV bypass but that did no good. However, I did notice that the pipes between it, the actuator and the manifold don't look as though they belong there - you know, short bits, long bits, one bit with a strange black restricter inside it etc.
I'm thinking that if the vacuum pipe to the VSV valve is in the wrong place then maybe something else is too.
Anyway, I have searched but nothing doing. Anyone?
Friday, November 03, 2006 - 05:46 am, by: Simon Roberts(Simonr)
Just found out that the check valve between the manifold and the VSV valve was on the wrong way round. In another thread, Manny said:
"As an aside, TT owners should consider cable tying the rubber ends on that one way check valve between the manifold and the VSV valve - if it blows off at high boost (as happened to me.....), AFRs immediately lean off as it shares a common internal manifold flow rail with the fuel pressure regulator and you all know what happens then if you've already got a marginal fuel trim/tune!"
I'm wondering, what would the effect of the check valve being wrong be on fuel pressure in light of Manny's comment about the link to the FPR?
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