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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

Current Ramping & Scoping Fuel Injector's
10/29/2020 in the Technical Discussion Forum
[Driveability: 96 Toyota Tacoma DLX 3.4L] Question, can 12V gasoline engine fuel injectors be gang-current ramped & scoped (all at once) from the FI common power feed and synch'd to the CKP or #1 ignition coil to find a suspect intermittent failing fuel ...
Cluster doesn't wake up (2 clusters tried)
10/29/2020 in the Technical Discussion Forum
[Electrical: 08 Jeep Wrangler Unlimited X 3.8L] I'm wondering if I have a bad TIPM. I have attached some captures of the network signals that look good to me but I'm not sure. Anyone out there have experience with Jeep CAN HI/LOW waveform? Figure one is ...
Programming an ignition transponder key with Autel?
10/28/2020 in the Technical Discussion Forum
[Electrical: 09 Nissan Versa S 1.8L] I have this Nissan that I believe has a transponder key that is starting to fail at times. I wanted the customer to bring me another key so I could try but you guessed it, this is the only key they have. I am unclear ...
Out of time or cracked flexplate?
10/28/2020 in the Technical Discussion Forum
[Driveability: 97 Chrysler Concorde LX 3.5L] HI folks, I have clean 97 Concorde with a 3.5L in it. It was towed in as cranks no start. The customer has put in a lot of new parts in it; CKP, CMP, coil pak, plugs. The vehicle sounds like there is an imbala...
Infiniti I20 crankshaft sensor
10/27/2020 in the Technical Discussion Forum
Using a scope to look at crank sensor while running. The signal I see is a square wave but the first part of the square wave is chopped off. And i see its 2.5 volts. I believe I should be seeing a continious square wave pattern. All the forums say this is...

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