Max, Dwight et allo' ya. I was in Florida more than 10 years ago and in Carolina about 6 yrs ago. I promise that if we pass that way south again, I will wave. I have a Bosch boost/vacuum gauge (read cheap chinese) that will need to be installed to definitively prove the diagnosis. On the project 190Dt there is the same sensor, so a quick swap and test is due. The waste gate is free from binding and the diaphragm is intact. I changed my fuses so that my pistons will not melt. Thank you Dr B. Onward and upward. Fred.
On Tue, Jun 29, 2021 at 7:48 PM Max Dillon via Mercedes < mercedes@okiebenz.com> wrote: > When were you in Florida? When will you pass by Carolina again? I feel > left out.... > > Ok, so you've identified one possibility, bad switch. I don't think this > could be a clogged intake. > > Other possibility: turbo waste gate failed, and you do indeed have an over > boost condition, and your Pistons will MELT. Need to get a boost gauge to > test that theory. > > Last, the over boost solenoid is faulty, and shutting off signal to ALDA > when it shouldn't. > > Max Dillon > Charleston SC > > > Jun 29, 2021 4:39:22 PM Frederick Moir via Mercedes <mercedes@okiebenz.com > >: > > > The gremlin has been exposed! > > The car would run well up up about 3200 rpm, then start to behave as if > > the fuel was being switched off and on rhythmically. It was! > > The boost sensor in the intake has (sort of) failed. > > When we picked up the car in Fla. it had this subtle minor surge, > > especially noticeable on cruise. > > It got worse. driving to and from the latest Q it was quite pronounced. > > Did all of the usual things, banjo bolt, tubing, rubber bits, checked the > > solenoids, etc.Finally got smart and pulled the plug on the sensor, it > > works as normal, yippee! > > So, clogged intake and sensor or just sensor? (~$70) > > Idiot studying to be a cretin wants to know. > > YMMV. > > -- > > Fred Moir > > Lynn MA > > Diesel preferred > > _______________________________________ > > http://www.okiebenz.com > > > > To search list archives http://www.okiebenz.com/archive/ > > > > To Unsubscribe or change delivery options go to: > > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > -- Fred Moir Lynn MA Diesel preferred _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
