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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 17, 2021
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Open Help Requests for All Makes and Models
Help Request Answers
2007 Audi RS4 4.2L Misfire VIN: WUARU78E17
We need some input on this RS4. It appears our customer bought someone else's nightmare. This vehicle has an intermittent misfire. The car has aftermarket exhaust. It appears to have a stock flash in the engine controllers. The customer installed spark plu... Trouble codes: P0300 (Random multiple misfire), P0303 (Misfire cylinder 3), P0305 (Misfire cylinder 5)
2015 Audi A4 Quattro Premium Plus 2.0L MIL Lamp on VIN: WAUFFAFL0F
Need Disassembly instructions for the ECU harness connector. I need to replace a terminal that has a loose fitting terminal. I am having a hard time getting the connector apart & hoping someone has a procedure from Audi on how the connector comes apart. Th...
2010 Chevrolet Traverse LT 3.6L Misfire, MIL Lamp on VIN: 1GNLVGED1A
This Traverse came from a used dealer who sold it. It will intermittently begin to run rough and always log codes p216a & p216d. It will happen randomly cold or hot, in the shop or on the road. Some times it will log misfire codes on cyls 235&6. It had p06... Trouble codes: P216A, P216D
2016 Ford F-250 Super Duty King Ranch 6.7L No power VIN: 1FT7W2BT0G
After 11 miles, power reduce, low fuel pressure and exhaust filter need cleaning message pop up on dash board. Barely move to 50 mph. My scan tool is out for repair. Has anyone have these message before ???smoke test and no vaccum leak, no leak head gasket... Trouble codes: P24A2
1997 GMC C3500 Sierra SL 7.4L Excessive Emissions VIN: 1GDJC34J6V
As this is a heavy duty vehicle, it has to pass a tail pipe test in Oregon and failed due to high hydrocarbons. The check engine light was never a problem until they got in line for emissions testing. I verified that it had flat lined and replaced B2S2. I ... Trouble codes: P0157
2012 Hyundai Elantra GLS 1.8L Stall VIN: 5NPDH4AE8C
Car runs fine from a cold start until it reaches full engine warm-up. She says that when stopping at stops and even at highway speeds when she takes her foot off the gas, the engine stalls. No codes are present on Engine or Transmission or any other mod...
2011 Mercedes-Benz R350 4Matic 3.5L rear latch VIN: 4JGCB6FE8B
First let me thank all Mercedes-Benz techs for their expertise. This is my car, rear latch broke, I ordered one on line from Mercedes parts installed check operation all good, next morning battery dead, charged battery, clear codes, check system from short...
2012 Scion xB 2.4L Poor Idle Quality VIN: JTLZE4FE5C
Engine rpms drops to 400rpms only on drive or reverse in park/neutral is around 950. Fuel trims at idle in gear short term at 4% long term at 2 %. Have driven it with escan to check fuel trim table all green at any throttle angle, no check engine light no ...
2002 Subaru Impreza WRX 2.0L No Start, no scanner communica VIN: JF1GD29642
The ECU does not trigger the COPs. COPs have power & ground but no computer signal in the 3rd wire. Test light from B+ to COP's 3rd wire (computer signal) will fire the coils while toggling. Scoped computer signal wire to coil (nothing). There's no 5volt r...
1999 Toyota Tacoma 2.4L MIL Lamp on VIN: 4TANL42N6X
Greetings one and all. Hoping for a little divine wisdom on this little truck. Truck came to me with a P0401 EGR Flow Insufficient. Tested the system and all was working except the EGR temperature sensor would go open when the temperature of the exhaust we... Trouble codes: P0401 (EGR Flow Insufficient)
2010 Volkswagen Jetta Wolfsburg Edition 2.0L 1st Gear VIN: 3VWRJ7AJ2A
I have driven this car and when warm typically, it will slip and jerk first gear in a stop and go situation. Such as stopping completely every 60 feet and accelerating again. I scanned the modules and there aren't any codes in the transmission module. It a...
2011 Volkswagen Touareg VR6 3.6L Timing Marks VIN: WVGFF9BP6B
Hello all! This VR6 came in with the head already off. See 'related repair history for details' (exhaust valve had burned a hole through it). So we sent the head to our local machine shop to repair it. I've got the head back on and am timing the engine now...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2008 Chevrolet Silverado 1500 WT 4.3L Tpms, Srs VIN: 1GCEC14X98
Thanks for all the replies. Have had no trouble scanning these systems on other similar vehicles with my Snapon scanner, but customer chose not to pursue repairs, chose to buy another vehicle.
2004 GMC Sierra 2500 HD SLE 6.6L Nothing works VIN: 1GTHK23124
It was a bad ground to the firewall. Thanks for all the help! I grounded pin 4 on the obd2 connector and everything started working, so that led me back to looking for a bad ground.
2008 Honda CR-V EX 2.4L Atf Temp Sensor VIN: 5J6RE485X8
I ended up sending this POS down the road to a friend's shop. He had the same issue as me but eventually found another wiring diagram that indicated that the correct pins were indicated but the wire color was different (I believe a green wire was in pin #6). H...
2000 Lexus GS300 3.0L No Start VIN: JT8BD68S2Y
Thank you all for your replies with great tips. Especially, "Ronald" you nailed it. I removed CKP sensor and found there was some metal debris on the sensor. I have no idea where they came from. I double checked the crankshaft gear reluctor and found it clean ...
2008 Toyota Sienna CE 3.5L Engine VIN: 5TDZK23C48
Tomasz got me out of the rabbit hole. Scottie helped with the fix. The issue was the left inner CV Joint. I felt play in it(boot intact) compared to no play in the right. Upon disassembly there had been some water intrusion.
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