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Well took one in the arse today went to Mazda. Turns out its not the ecu, we have variable cam timing, & mines way off, compression is crap, valves are hitting the pistons... Just awsome.... In short motor is blown, any suggestions on where to find replacement?

sounds familiar Hey there, if you were to check out my "help" post I was wondering if anything I discribe is also what you experienced? It does sounds like my symptoms are pretty close to yours. Is one of your banks running rich? ... As far as the cost I would say 2k is a little steep, do some...

narrowing it down MAF has been replaced as well as all 4 o2 sensors. Altough it still throws a code for low sensor voltage bank2 sensor1.

Narrowing it down Ok, so ... I took care of the miss fire issues with the coil n plug replacement. Now the only sytom remaining, is bank 2 runing incrediblly rich, it dumping so much fuel into that bank that its crystal clean, all the way down to the valves no carbon build up anywhere fuel...

update 2 So installed new coils today & performed a vacuum leak check.. she's still runing very rich, kepa telling me bank 1 sensor 1 stuck rich, & bank 2 sensor 1 low volts... Make no sences since they are both new sensors... We are completely baffled,,, I guess its off to tracing the sensor...

update So I am caving and picking up new coils, found a sweet deal on eBay. Ruffly 98$. Let's see if this solves the problem .. wish there was an icon for " ripp(uhm)ing hair o(braindeadut"

If its the upper intake manifold its a simple job, just make sure to replace the gaskets.. its litterly a few screws, and disconect the egr "carefully", also note there's a gasket there too.. I have a 07, and this past month I must of removed and installed it about a 100 times just trying to...

Hi all, For my first post I'd like to start with.... Please Help! :) I have a 2007 Mazda 6 3.0L manual 5sp. (95k) miles, And I have been under the hood for a few weeks now and can't figure out what's going on. Here are symptoms followed by codes: Ruff idol, runinng in limp mode, I can hear...