ARGH!! Unsolveable wierdness!!!
#1
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So I've been having ISSUES with my B5 S4...
Symptoms include CE light, EPC, Oil Pressure warning, very rough idle, car going into limp mode, non-responsive accelerator.
I've pulled the codes and here goes.
18047 - Accelerator Position Sensor 1/2 (G79/G185) Implausible Signal - P1639
16490 - Manifold/Barometer Pressure Sensor (G717/F96) Implausible Signal - P0106
18057 - Powertrain Data Bus Missing Message ABS Controller - P1649
16621 Manifold Pressure/Boost Sensor (G31) Signal too low - P0237
17800 Camshaft Position Sensor Bank 2 (G163) Open or short to plus - P1392
17746 Camshaft Position Sensor (G40) Open or short to plus - P1338
The camshaft position sensor codes pop up immediately after I clear the codes. The accelerator position sensor codes pops up immediately when the pedal is depressed.
The ABS error is due to a faulty ABS controller so disregard.
I've changed the throttle body and MAP sensor but still get the same errors.
The cam position sensor is untouched for now because I want rule out other options before replacing this.
They seem to point to either the ECU or wiring issues so I borrowed another ECU and plugged it in today. Still the same errors so that rules out ECU.
Are there other areas I should be looking at? The few people I've had look at it or ask about seem to think it might be a ground fault.
Opinions? Options?
I'm really to try anything right now.
TIA
VH
Symptoms include CE light, EPC, Oil Pressure warning, very rough idle, car going into limp mode, non-responsive accelerator.
I've pulled the codes and here goes.
18047 - Accelerator Position Sensor 1/2 (G79/G185) Implausible Signal - P1639
16490 - Manifold/Barometer Pressure Sensor (G717/F96) Implausible Signal - P0106
18057 - Powertrain Data Bus Missing Message ABS Controller - P1649
16621 Manifold Pressure/Boost Sensor (G31) Signal too low - P0237
17800 Camshaft Position Sensor Bank 2 (G163) Open or short to plus - P1392
17746 Camshaft Position Sensor (G40) Open or short to plus - P1338
The camshaft position sensor codes pop up immediately after I clear the codes. The accelerator position sensor codes pops up immediately when the pedal is depressed.
The ABS error is due to a faulty ABS controller so disregard.
I've changed the throttle body and MAP sensor but still get the same errors.
The cam position sensor is untouched for now because I want rule out other options before replacing this.
They seem to point to either the ECU or wiring issues so I borrowed another ECU and plugged it in today. Still the same errors so that rules out ECU.
Are there other areas I should be looking at? The few people I've had look at it or ask about seem to think it might be a ground fault.
Opinions? Options?
I'm really to try anything right now.
TIA
VH
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from the wireing harness. If so, how do you clean all the small pin sockets?
I can see taking an emery cloth to the contacts on the back of the ECU box but the plugs seem hard to check for corrosion and to clean.
TIA
I can see taking an emery cloth to the contacts on the back of the ECU box but the plugs seem hard to check for corrosion and to clean.
TIA
#6
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<center><img src="http://rocky.digikey.com/weblib/Metcal%20Web%20Data/Web%20Photos/New%20Photos/AC-TC-P-ENDS.jpg"></center><p>
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Most soldering iron tip cleaners are brass wire spools or wet sponges that you swipe or push the tip into. But I'll try various different things to see if I can something in there.
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#10
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The one posted is from digi-key. ~US$70
http://search.digikey.com/scripts/Dk...ame=AC-TC-P-ND
http://search.digikey.com/scripts/Dk...ame=AC-TC-P-ND