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Need help as I’m stuck. Car runs good not rough, only 25k miles. Had stage 2 for 4 years now, normal drive, I don’t drive it to hard, maybe 20 pulls to 100 mph since I own this car.
One day I notice my car seems slow like slower than my Stock Lexus RCF. Saw boost dropping back down to 1/4 after 4-5krpms. HP reads 330.
Bought smoke tester and found no leaks whatsoever, none in the exhaust. Then notice smoke coming out of the two hoses under the intake, I believe it to be PCV hose line. Is this a bad sign. Can a bad PCV cause my car to loose boost.
The short answer, in my opinion, is Yes, probably. If it is in fact the PCV hoses leaking, they work both ways... meaning that under vacuum they provide suction to the crankcase to recirculate oil vapors and any combustion blow-by. But under boost they are pressurized, and there is either a mechanical check valve, or an electronic solenoid, the closes to block the boost from going into the crankcase. (I'm not sure which these cars have, but maybe both). If you have a leak there, then I'm confident saying that boost is leaking out. PCV leaks will also cause all kinds of issues with Short term and Long term fuel trims. So if you can do any data logging / OBD data viewing, you should see the fuel trims out of whack at idle as the car attempts to compensate for un-metered air entering the intake.
Need help as I’m stuck. Car runs good not rough, only 25k miles. Had stage 2 for 4 years now, normal drive, I don’t drive it to hard, maybe 20 pulls to 100 mph since I own this car.
One day I notice my car seems slow like slower than my Stock Lexus RCF. Saw boost dropping back down to 1/4 after 4-5krpms. HP reads 330.
Bought smoke tester and found no leaks whatsoever, none in the exhaust. Then notice smoke coming out of the two hoses under the intake, I believe it to be PCV hose line. Is this a bad sign. Can a bad PCV cause my car to loose boost.
Did you also plug the two little ports that insert into the bottom of the coupler between the turbo and the intake tube? That seems like that's where the smoke is coming from. If two little ports on the PCV block thing are plugged then it seems like you have a leak somewhere, maybe those PCV hard lines, maybe the block thing... you'll have to run that down.
Also, with the car off, I'm not sure if the PCV solenoid down at the throttle bodies / intake runner area remains open or closed. If it remains open then my theory isn't as solid, because you are just pushing smoke through the turbo, into the intercooler, and intake runner, and then back up through the PCV system (if it stays open with the car off) to where the turbo inlet is. Hopefully a MB tech, or somebody certified can weigh in, or if you have Xentry perhaps you can manually toggle open and closed any PCV solenoids to see if that makes a difference.
I think if you posted the codes like you did for the exhaust flap it would be helpful. Looks like you have some stuff to correct. Exhaust Flap 2 should be one of the rear active exhaust servos by the mufflers. They are not hard to replace. The MB servos are expensive, but I there is a Ford active exhaust servo part that is cheaper and that some people on this forum have said is an alternative direct replacement.
If you have a PCV leak under WOT then I would think a P1CE700 or P1CE800 code might be present. I'm not familiar with the Autel menus but try going through some menus to see if you can manually actuate any PCV valves to open or closed and re-do your smoke test.
Ok, so I test again and here are the faults. No faults in the PCV system and this Autel doesn’t have the function to turn the pcv on or off.
however, I try to find the function to turn off the exhaust flaps and couldn’t find it. Only thing in the Autel is multipurpose exhaust regulation and it came up saying none installed, which is odd.
i took off the flap assembly on both mufflers and they seem to be working. I can see both spring moving about 1/4 turn each time I turn the car on and off. But no movement when I switch it from C to S+.
can the Autel take my car off of limp mode? And how?
Ok, found driver side muffler flap stuck not moving. The position of the butterfly valve is angled almost horizontal, where the other side is some what vertical.
I can use the Autel to open and close the valves but seems like the driver side is stuck. Will try to fix it and report back.
Ok, I WD the crap out of the stuck flaps and now my car is back up and running.
however, in the mix of things. I accidentally went in an calibrated my suspension and now the car suspension is in limp mode. Does anyone now what our stock level suspension value is set at?
You might try to message @BenzNinja on WhatsApp. He probably knows the values. Seems like you could use his help anyway with some of the faults you have.
hopefully someone here had some knowledge on how to do this ADS Suspension level calibration.
there is one issue that I have. I enter a few number between what was given and it errors out.
Not sure where the +\- in the system to even make adjustments.
You couldn't get a hold of BenzNinja? Did you email info@benzninja.com? Or you did get a hold of him and he said he wouldn't help? You might have to "Rent BenzNinja" (Fill out the form on the bottom of his website) Once you have the computer and StarConnect he can remote in and code the suspension system.
however, did some more digging and notice that one of my height is out of range, 127, you can see it in the diagnostics screen. So I’ve been jacking the car up and down since it’s reading mm instead of voltage. this is done on all 4 corners to get the range back into spec. Notice the high 127 was due to a bad installation of the level sensor, installed reversed after camber arms were installed. Got that corrected. Now just waiting on the car to reset 10-15 minutes with closed and locked doors. Will report back if I get it corrected.
So happy to see the car with stage 2 power again. I’m just a Mechanical Engineer and will try to master this car so I don’t have to take it in since it’s all modded. Will hope to help others in the community here as much as possible.
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