Join Now
International Automotive Technicians Network

Automotive Technical Discussion Forum

Professional automotive forum for all types of vehicle repair discussion that does not fit into one of our more specific technical forums. Discussions include both OBD and OBD2, engine performance analysis, diagnostic best practices, service information, vehicle standards such as J1962, J1939, J2534, OBD2 modes (e.g. MODE$06), ignition and fuel system analysis, alternative propulsion (e.g. hybrid, electric, natural gas), and more. This forum is for experienced automotive repair professionals only, membership required.

Continue to the description of our next automotive discussion forum, the Technical Theory Forum.

Recent Automotive Discussions in the Automotive Technical Discussion Forum

2003 Duramax
05/22/2013 in the Technical Discussion Forum
[Driveability: 03 Chevrolet C4500 Kodiak C4E042 6.6L] This truck has an issue with hard starting after a hot soak. Injector duration and balance rates are all Ok except for one cylinder (#8) which is a little out at -4. Vehicle needs a thermostat, but do...
2009 Volkswagen Tiguan
05/22/2013 in the Technical Discussion Forum
Hey guys, need some help from a VW tech here. Does anyone know which data group(s) have the PIDS related to the electronic throttle body and pedal assembly? Specifically, I am trying to find the sensor value for the APP sensors and TPS sensors. Chasing a ...
Engine machining & tolerance question
05/22/2013 in the Technical Discussion Forum
[Engine: 06 Volkswagen Jetta TDI 1.9L] This 196,000 mi. diesel dropped a valve on # 4 cylinder and stuck in the middle of the piston. It then hit the head very lightly and penned a area between the intake and exhaust seat. We blued in two new valves and ...
Honda won't start
05/21/2013 in the Technical Discussion Forum
[Driveability: 01 Honda Accord LX 2.3L] This pig was towed in as a no start. First I checked for spark. It was very weak. I pulled the cap and put my low amp probe around the coil wire from the module. What I got was a pattern that was basically a square...
short term trim -31
05/21/2013 in the Technical Discussion Forum
This '02 Hyundai sonata 2.7 L, is displaying S. T. trim at -31, inj. ms around 2.7 on both banks, AF sensors are both active up and down, in closed loop, DTC - P0420. Disconnecting any inj. on bank #1, ST trim goes to around -2, none of the inj. are leaki...

Automotive Technical Discussion Forums

Automotive Non-Technical Discussion Forums