no more EGR ??

[Jolly Roger VX'er]

JollyRoger you're right on as to the function of the EGR as it's an emissions-control technique and has no benefit to the function or performance of the engine. I too ditch the system wherever and whenever I can, but haven't on our VX's as it hasn't faulted yet. If it ain't broke! You shouldn't be concerned about PCV failure related to the EGR block-off as the two are not related functionally. The PCV operated from engine vacuum tapped at the intake to provide "Positive Crankcase Ventilation". The "Positive" is a bit misleading as it doesn't impy positive pressure on the crankcase side but rather an authorative ventilation method as provided by engine vacuum. Replace your PCV grommet every couple years and change the PCV itself every other oil-change and you'll have no problems unless you get a defective new PCV, but that's why you should check your oil regularly too! Otherwise you could retrofit a crankcase breather to the valve cover in lieu of the PCV.

For those using an EGR block-off we just need to determine what signal the ECU is looking for from the EGR so it can be "fooled" into thinking it's operating normally.

Thanks Joe! I went the blocking route because @ 87,700 miles and the EGR acting up, my VX really could use a new one if the EGR is to remain operable.

My experience is that EGR's degrade over time (internal spring tension fades...pintle starts sticking...etc.). When the spring starts weakening you get valve "flutter" when the valve is supposed to be closed and that's when the vehicle starts things like hesitation, bogginess, lower mpg...etc. I've had good luck in the past just blocking them off when they needed replacement (saving like $150) plus, so far they do no emissions testing where I live.

I've lived with a faulty EVAP system (also doesn't affect how vehicle runs...emissions related only) for about 2 years now and the check engine light comes on for that...goes back out after like 25 starts...comes back on when it fails that particular test again!

I'm getting much better gas mileage today although I believe it is a combination of things...nicer (warmer) weather, summer blend gas, EGR was not operating as it should (now blocked off it is essentially @ the very least "closed" when it supposed to be ).

2nd day driving with EGR blocked and she feels like she got a tune-up!

Oh yeah...I've gotten stung twice with defective new PCV's..first was a Autozone popular brand starts with "D" and sounds french...lol...benefits of early alzheimers...& second one was a Purolator while in Moab. I noticed when the oil level dropped drastically between fill-ups & my breather cap (filter) was spitting/foaming oil out (normally sucks air in) due to crankcase pressure building up and venting out the wrong end!


P.S.----wasn't going to sleep today if I didn't use the "search" button and fill my alzheimer ridden skull with the name of that PCV sold @ Autozone....(and now it doesn't sound so french) survey say's:

DEUTSCH PCV VALVE for a 2000 ISUZU TRUCK VEHICROSS 4WD

Unit Price: $3.49
Part No.: PCV193
Weight: 0.05 lbs.
Availability: Online: Ships within 2 business days
Store: Normally Stocked