Throw that MAF into the weeds and get a new one. Better still unplug the MAF and the car will idle at a (default) MAF value and the oscillating should stop.
Make sure you clear the codes before starting the engine, though.
Throttle body cleaning issues EPIC Volvo saga...RESOLVED!!
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precopster
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When I unplug the MAF, the engine runs a few more seconds then it stops. It will not start with MAF unplugged.
Stupid question, how do you clear codes with Vida. The only "clear" I see is that of vehicle information.
Honestly I couldn't find clear code/delete code on Vida's help book neither. Did you mean clear with an OBD?
Stupid question, how do you clear codes with Vida. The only "clear" I see is that of vehicle information.
Honestly I couldn't find clear code/delete code on Vida's help book neither. Did you mean clear with an OBD?
S60 2002 180K miles looks and runs like new (except when sulking)
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precopster
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Vida clears them. Dice IS an OBD. When you're in Fault Trace go to Delivery tab then read codes again. Always use Delivery as an indication of current codes. Then once codes are read scroll down and you'll see Erase Codes at the bottom left.
Your car won't run because there are pending codes that have placed the ECM in Limp Home mode.
The car may not run at all without a MAF. Your high MAF readings are evidence enough it should be replaced. Remember your readings should be around 18kg/hr at idle.
Your car won't run because there are pending codes that have placed the ECM in Limp Home mode.
The car may not run at all without a MAF. Your high MAF readings are evidence enough it should be replaced. Remember your readings should be around 18kg/hr at idle.
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design
precopster, thank you very much for your patience and helping me. I mean it. Seriously, you are being very helpful.
I did a "clear all" (not the 3rd tab clear EMC) and restarted the engine. It made a lot of crazy sounds (as if pieces were going to fly) then it went on as if having a seizure
. I let it idle for few minutes hoping that it will quite down, it didn't 
.
I have located a (non dealer) MAF vendor pretty far, so it will be tomorrow afternoon that I will have replaced the MAF.
I will remember to clear the codes again before starting, this time hopefully in peace.
.
I did a "clear all" (not the 3rd tab clear EMC) and restarted the engine. It made a lot of crazy sounds (as if pieces were going to fly) then it went on as if having a seizure
. I let it idle for few minutes hoping that it will quite down, it didn't . I have located a (non dealer) MAF vendor pretty far, so it will be tomorrow afternoon that I will have replaced the MAF.
I will remember to clear the codes again before starting, this time hopefully in peace.
.
S60 2002 180K miles looks and runs like new (except when sulking)
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precopster
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The two of them have an effect on each other. For example if the throttle flap is open 80% and the foot is pressing to 20% or less the MAF will have a high airflow reading but injectors will only be supplying enough fuel for a 20% load. This makes the car stall.
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design
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precopster
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My voice was lost in a sea of hopeprecopster wrote:FROM 13th May: You also have wildly varying throttle angle voltage readings. They should be equal.
I'd spring for both MAF and TB
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design
.
.
While waiting the arrival of the replacement TB...
Honestly, I have read a lot of threads about people going to dealers and spending more than 1'000 $ over these symptoms without result. This, and the fact that I cleaned a perfectly working TB, tell me that maybe, maybe I did something that I can correct without going through the pain of RE-doing that same job all over again.
I'm often called Stubborn-Turk, but Turk, I'm not
.
.
While waiting the arrival of the replacement TB...
precopster wrote:
My voice was lost in a sea of hope
Honestly, I have read a lot of threads about people going to dealers and spending more than 1'000 $ over these symptoms without result. This, and the fact that I cleaned a perfectly working TB, tell me that maybe, maybe I did something that I can correct without going through the pain of RE-doing that same job all over again.
I'm often called Stubborn-Turk, but Turk, I'm not
.
S60 2002 180K miles looks and runs like new (except when sulking)
.
I tested the ECM again and here's the new reading ;
See image first then ;
ECM-Engine speed 1000 rpm( actually between 650 and 1000)
ECM-Adaption throttle unit Not ok ???
ECM-Nominal throttle angle 6.71 %
ECM-Throttle position sensor, potentiometer 1 100 %
ECM-Throttle position sensor, potentiometer 2 100 %
ECM-Throttle position sensor, potentiometer 1 4.99 V
ECM-Throttle position sensor, potentiometer 2 0.01 V
ECM-Leakage air through throttle blade 6.3
Does this mean that I need to program?
.
I tested the ECM again and here's the new reading ;
See image first then ;
ECM-Engine speed 1000 rpm( actually between 650 and 1000)
ECM-Adaption throttle unit Not ok ???
ECM-Nominal throttle angle 6.71 %
ECM-Throttle position sensor, potentiometer 1 100 %
ECM-Throttle position sensor, potentiometer 2 100 %
ECM-Throttle position sensor, potentiometer 1 4.99 V
ECM-Throttle position sensor, potentiometer 2 0.01 V
ECM-Leakage air through throttle blade 6.3
Does this mean that I need to program?
.
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S60 2002 180K miles looks and runs like new (except when sulking)
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precopster
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The throttle adapt procedure is already attached to this post but because you've already cleared codes the adaptation would have already completed automatically.
The BCM is a body control module which controls functions other than engine such as door locks and window operation. ABS is a contrller issue. The ABS unit may be faulty or that rear wheel sensor requires cleaning. The SRS is an airbag issue. You may have corrosion in a SRS connector.
As you highlight each code with the mouse Vida provides an explanation of symptoms for each code. None of these would affect the engine management or throttle system. So we've come full circle and it's back to a faulty TB.
If you want a cheap solution buy a used tested one for $50 and be done with it. They don't work when they have different voltages on Pot 1 compared to Pot 2
The BCM is a body control module which controls functions other than engine such as door locks and window operation. ABS is a contrller issue. The ABS unit may be faulty or that rear wheel sensor requires cleaning. The SRS is an airbag issue. You may have corrosion in a SRS connector.
As you highlight each code with the mouse Vida provides an explanation of symptoms for each code. None of these would affect the engine management or throttle system. So we've come full circle and it's back to a faulty TB.
If you want a cheap solution buy a used tested one for $50 and be done with it. They don't work when they have different voltages on Pot 1 compared to Pot 2
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design
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