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This just started - When you turn the key to start the vehicle, there is a noise (hum) from the sub-woofer that's stays on until the starter cranks. When the car starts, everything related to the radio is normal, but the LED on the Rear Defroster switch stays on all of the time. I was told the Rear Defroster relay is bad so I purchase a replacement. I'm having a problem locating this relay. Is it located under the dash or behind the rear seat? Which relay is it?
Hello Porsche experts, I recently purchased a used 911 Carerra, 2003 and had the fuel pump fail. So I looked around in Orange County to find a Porsche mechanic and ended up taking it to Hergesheimer. They replaced the fuel pump but a few days latter I experienced something very troubling. The car would start but idle was somewhat rough. Revving the engine was a challenge in the lower RPM 1000-3000 then it became a bit smoother when driving with load on the engine in the 3000-4000 RPM range. Alarmed by this I called the shop to bring the car in, but this was the day before the Rennsport Reunion in Laguna Seca so I dropped by another mechanic who brought up these error codes on a generic diagnostics tool: P0134 Sensor Circuit No Activity Detected (Bank I Sensor 1) P0101 Mass Airflow Sensor / Circuit range issue Performance problem P0154 O2 Sensor no activity detected (Bank 2 post CAT ) P2098 Post Catalyst Fuel Trim System Too Lean Bank 2 P2096 O2 Sensor no activity detected Post Catalyst Fuel Trim System Too Lean (Bank 1) P0156 O2 sensor circuit malfunction (Bank 2 Sensor 2 post CAT) Initially I thought this was related to the fuel pump replacement. So I called the shop who did the work and they said bring it over. Their analysis identified similar codes and they suggested a few hours to review the harness and sensors in order to asses the problem. A week later i am still trying to resolve this and wondered if I should replace the O2 sensors myself. I have done brakes and other minor maintenance. What is the opinion of the forum here on next steps? I can provide further detail
I am new to the forum and the Porsche community! I am currently in the market for a 996 911 C4S.
I located an EXTREMELY clean C4S with the following options and specs. Because I am new to the community, I am not exactly sure what it is worth. It seems there is a large discrepency between one comparable car to another on eBay (sold listings).
2003 911 C4S
•Little to no cosmetic or mechanical flaws - interior and paint look brand new
•All services up to date (IMS issue not resolved...)
•Carrera White Exterior
•Natural Brown Leather Interior
XPA - Thicker Steering Wheel
XE8 - Dark Burr Maple Gear Lever
XE9 - " " Hand Break
X45 - Colored Instrument Dials
X99 - Natural Leather Interior
288 - Headlamp Washer
446 - Wheel Caps With Colored Porsche Crest
680 - Bose Sound
Opinion on value?
Thanks everyone for you time,
I have a brake Proportining warning light on my 2003 cayenne everything works fine truck drives, the only thing that doesn't work is the speedo (mph) side,& won't mark miles as I drive it stays at 104k, rpm side works fine, from time to time the radio starts to turn the volume up or down alone, like if it has a mind of its own. One more thing the nav won't work it stays at my house street even tho I'm in another city, I checked under my driver side carpet everything looks good! Dry! I even check the 4 sonic welded wires that get corroded, they seem clean with No corrosion, checked all fuse boxes and every fuse one by one they all seem fine,any help would be greatly appreciated I'm trying to fix this problem ASAP thank guys!