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#11
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
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#12
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MAF testing can easily be done by while the engine is running and the MAF disconnected from the airbox, tap hard the outside of the sensor with the handle of a screwdriver (not ass beating hard). If you get a stumble in the idle then the film sensor is loose. I have had issues with MAFs a lot lately and even OEM which I believe has been infiltrated with fakes into the supply chain.
Sent from my SM-A730F using Tapatalk
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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course |
#13
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Quote:
Do you have a good scanner like Foxwell or ista-d, etc? Are all your o2 sensors working and showing no codes? Are you getting a low signal code from the MAF? And not sure what if any bearing it has on it, but do you happen to have any license plate lights and rear fog light out?(specifically the left side) This last one is probably just a coincidence but I was getting bad MAFs that started when I had those lights out and I had a ground issue causing that and since the MAF has a 2nd sensor reading the ground it would NOT surprise me that a ground somewhere else (hot to ground) could screw up the sensitivity of a ground in the MAF. But I had the same for a while that caused me to want to hunt down the BMW electronic system engineer and fixing the lights saved my MAF ir like I said complete coincidence... Sent from my SM-A730F using Tapatalk
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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course |
#14
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If you have a 3.0 engine the OE maf was made by Siemens not Bosch.
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
#15
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There's a bunch of letters on the diagrams, such as
HZHL, NTCHL, NTC, HEIZ etc. Is there a list somewhere that explains what they all mean? Last edited by Bmwe5320023.0; 10-12-2021 at 12:00 PM. |
#16
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#17
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The bar could be anything. The transistor and bar symbol mean there are some electronics and give rough idea of what's going on.
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#18
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Signal types. Most of them are found in WDS Component and signal information -> Signals.
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E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey |
#19
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A resistor and transistor connected to module (board) internal ground. A rough representation of a load and signal transfer.
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E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey |
#20
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Quote:
I tried searching the abbreviations section on TIS and could not come up with ANYTHING. But I do believe its an acronym for something. Is it perhaps the terminal name?
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2003 BMW X5 3.0i -- MT5, 3.64s final gears, H&R lowering springs, K-Mac bushing kit 2007 BMW X3 3.0Si -- MT6 |
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