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#16
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hey brandon...
when's the last time you had your belt and tensioner looked at/changed? i had fluctuantly mid range compression, then my belt broke while on the freeway...but then ASHMAN...the man, the myth, the coolest mbz owner ever, drove out to me at am/pm and together we took 4 hours to muscle a pep boys belt back on... now my compression stays one point under 3 during idle... no more mid range readings... just a thought.... and i'll get back to you on the roof rack..i'm currently shopping for better insurance.... ever heard if 21st century is good?
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~there is no spoon~ 1984 300CD Turbo Diesel (soon to be "powered by VEGGIE") - dolphin silver 1999 e430 Sport blk/blk, my sexy ***** ;-) (my other girls) 1992 300CE 24V 3.0L (w124) (R.I.P. "she was killed 7/12/03 by some ricer kids speeding in a honda accord") 1990 Acura Integra RS (w/94' engine) 1966 Cadillac Sedan de Ville (Hardtop) |
#17
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Mushedroom,
Mine belt tensioner is new, replaced about six months ago,. I think I can attribute my low oil pressure to my need for a valve job. Never heard of Century 21 (auto?) Insurance I hear geico is the way to go! I have allstate, it sucks and is more expensive than anyone else.... ![]() Good luck and email me when your ready!
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Brandon 2008 S550 1957 Dodge D100 1967 VW Microbus 21 Window 2001 Suburban 2004 Beach cruiser bicycle -----------------GO DUKE!----------------- "It cannot be emphasized too strongly or too often that this great nation was founded not by religionists, but by Christians; not on religion, but on the Gospel of Jesus Christ. For that reason alone, people of other faiths have been afforded freedom of worship here." Patrick Henry 1776 |
#18
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ouch...well good luck with finding a good mechanic...
we've got one here who is excellent and charges 1600.00 for the job
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~there is no spoon~ 1984 300CD Turbo Diesel (soon to be "powered by VEGGIE") - dolphin silver 1999 e430 Sport blk/blk, my sexy ***** ;-) (my other girls) 1992 300CE 24V 3.0L (w124) (R.I.P. "she was killed 7/12/03 by some ricer kids speeding in a honda accord") 1990 Acura Integra RS (w/94' engine) 1966 Cadillac Sedan de Ville (Hardtop) |
#19
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Quote:
Anybody know where the leads connect in a 1994 E420? What (and where) is the small box that you speak of. And do you mean to totally disconnect the O2 sensor and measure the resistance between it and ground, or just pull up the leads enough to stick the meter in parallel? |
#20
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Quote:
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2011 Prius |
#21
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Before you all go buying O2 sensors, I would suggest that the proper voltage output of a fully heated O2 sensor depends on the mixture it is sensing. Its goal is to sense and the systems goal is to achieve an average reading of Lambda or .45 volts. A good sensor will not likely ever stay at .45 volts. It is easily overwhelmed by mixture reading close to 1v at CO percentages of 1-6%. At 6% the engine starts to run bad. At 1% the engine is way out of emissions range.
The easy, cheating, way to evaluate the system is to disconnect the sensor portion if possible (leaving the heater hooked up - even if one must jumper it - many applications can't keep the O2 lit off without the heater). Place your volt meter across the sensor pair of wires so that you read the sensor output. Find the wire going to the computer that carries the sensor signal and ground it. With the engine reved one should get 1v output from the sensor which your voltmeter is hooked to. Now take the sensor wire and place one hand on a wire connected to the sensor to computer input and place the other hand on a 12v source. This tricks the controller into leaning the system and the voltage reading at the sensor should go to close to zero. Modern cars concern themselves with how fast the change of voltage can take place. This testing will only qualitatively address that criteria. It is a way to see if basic function is capable. Most O2 sensor codes originate from static sensor output voltage over a period of time. if the mixture is farther rich or lean than the controllers capability to correct then it will stay at one of the end stops 1v for too rich and 0v for too lean. This is NOT a sensor problem.
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Steve Brotherton Continental Imports Gainesville FL Bosch Master, ASE Master, L1 33 years MB technician |
#22
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Don’t want to hijack this thread, but do have a similar/associated problem and questions. Have just done a rather detailed new thread “Can O2 sensor be causing my poor idle problem??” that I’d much appreciate if the experts participating here could help me with.
Regards, Neil (London) |
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