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One interesting thing about those old Prius warmup stage threads - EGR was not even on the radar back then. Sometime after S4, (up to several...
If it was me and I was willing to risk damaging it, I'd open it up. If you're lucky there's a fan that is clogged or dead. Another cheap and...
I know that my 2010 has the element, but when I went to reassemble our 2012 I was shocked to see the element missing. I did a similar image...
I made a note from somewhere in the holy Repair Manual regarding the EGR Flow Insufficiency Monitor: The listed "trouble areas" are: EGR valve...
More likely what's happening is that without the MAF sensor the engine only runs in "open loop" mode. And the OP's problem is only occuring with...
I remember one guy here after doing his cooler said he thought it would be easier to leave those rear studs and instead remove both of the side...
OK gotcha. I've seen some things on how to use scantool data to see if an air/fuel sensor is working (at all), but nothing that would distinguish...
Just by the way - were you able to tell if that sensor was bad? Was there a chronically high long term fuel trim or something before the swap?
After seeing that gnarly fuel pump filter photo Raytheeagle posted not too long ago, I'll never let my tank get low again. (Just hoping not to...
The only way I could imagine the EGR causing these symptoms is if the valve's pintle was sticking slightly open. One way to maybe eliminate that...
I can confirm that Torque is able to read EGR (step and commanded%) and MAP on my gen3s. I have a 10 year old cheap OBD2 adapter with the paid...
So then EGR clogging should track with total number of cold starts (versus mileage or time or driving style)? Urban taxis with one cold start per...
As a mere "wise fool" myself when it comes to engines, I can only remain agnostic but interested regarding the causes of 3rd gen Prius' clearly...
Clearly they aren't doubling down on EGR volume just for the sake of NOx at this point. (It's funny that no Prii are reported failing emissions...
Interesting read. They're actually increasing the volume of EGR (doesn't say how much). Plus that water jacket spacer with rubber at the bottom...
Guys -- this really sped up the Oxy results for me: [ATTACH] I just call it Der 'Hoff. (Sorry I forget whose idea it was to strip TV coax for...
@youdiejoe So how's this thing shaking out? Head gasket? Engine swap? File off the VIN and push into the LA river?
So do we get a decent warning if we monitor OBD data? Hopefully pump RPM or duty cycle or something like that many miles before coolant temp...
Plus catalytic converters get over 1000F, they burn off the kind of stuff that sticks to the EGR cooler fins. And EGR valve. And EGR pipe. And...
Ha of course you did Mendel! But that Repair Manual instruction to just "stop on a flat road and open the fill plug" reads like it was copypasta...
