HotBrothers

iTrader: (1)

Hi guys,

I recently found out that I have a little problem in my 04 which is the P2070 CEL code. I've found out that it's the carbon buildup in the intake manifold. I can get the parts for like $250 in the web (the upgraded SSV) and labor would cost around $200. Since I do not have enough budget to get those fixed, I am wondering how long can I drive until I see some real problems in the car. I deleted the code and drove around 50 miles, but haven't seen the code popping up again. I am not having any issues such as power loss and rough idle.

This weekend I need to drive around 250 miles and deciding whether I should rent a car or just driving my 8 would be okay.

Any inputs would be appreciated. Thanks.

RIWWP

iTrader: (2)

For about $8, you can remove the upper intake manifold in your driveway and spray down the valving with MAF cleaner to accomplish most of cleaning that you need.

Yes, generally you will be fine to drive it as is.

HotBrothers

iTrader: (1)

Yea but I want to get the problem resolved completely and the Mazda dealer recommended to get a new SSV since the one I have is a weaker one that causes all the troubles. I had to replace my engine a year ago and when the Mazda did that, they said they've cleaned out the SSV. So cleaning isn't a perfect solution I guess? BTW, My car is at 82,000 miles.

wiesel42

It sounds like you need to drive it harder. You need to do some WOT pulls to redline to keep that crap out.

RIWWP

iTrader: (2)

I'm not aware of a "weaker" SSV. I am aware of dealers trying to get you to spend money that you don't have to though. The problem isn't the strength of the SSV, but the fact that it's getting carbon fouled. It shouldn't get fouled in the first place, and you should be able to prevent that. Just cleaning the SSV is all you need unless the solenoid has actually failed.

Redlining does nothing for decarbing intake valves, since they aren't in the combustion chamber. The intake valves get carboned up from oil in the intake, which can happen from vacuum problems, filling the oil without a proper funnel (which can let fresh oil drain into the vent tube), or overfilling the oil.

wiesel42

True....but the master tech at my dealer told me that WOT acceleration makes the valves work and keeps them from getting stuck with carbon.

I wonder if he still feels the surge or not as the valves open in the rev band?

nycgps

iTrader: (1)

there is an updated SSV, the kit comes with it, the SSV has a slight change to the shape, new gaskets, stronger spring and longer bolt to fit the new SSV.

nycgps

iTrader: (1)

drive harder does keep the SSV from getting stuck. hell I unstuck mine couple of times just by doing repeated WOT pulls.

but the updated kit will get rid of the issue.