Catch all tag which can refer to the "brain" of the car which can control the engine and/or transmission of the vehicle. This would include such terms as PCM (powertrain control module), ECM (engine control module), PCU (powertrain control unit), ECU (engine control unit), and many, many others.

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How do I find the correct pins in a CAN-BUS connector?

This question might be too technical for this forum, but I'll give it a go. I have a 2012 BMW R1200R motorcycle with CAN-BUS. I'd like to make an Arduino interface to the connector on the bike, but I ...
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2answers
279 views

Do I have to change my speedometer setting if I get larger tires?

I bought a jeep with very small tires (not sure the exact size). I recently bought a new pair of tires that are probably 2 or 3 inches larger radius. Do I have to update my jeep so the speed is ...
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2answers
480 views

Do I need computer reprogramming when transmission is replaced?

Honda Odyssey 2003: I'm replacing a transmission, and a local mechanic will help me to swap it in my garage. I've been told at a local shop, that in order to install remanufactured transmission ...
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1answer
273 views

Manual ECU with Automatic Car

Have 92 Accord with 1.8 VTEC. The Installed Engine is From 98 Accord. The transmission is the original which came with 92 accord. This transmission is operated by Kick Down cable and does not have any ...
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2answers
174 views

Trip computer reported MPG with engine remap or chip

A question related to Car average mpg display correctness I suppose, but say if a piggy back chip (e.g. http://www.dieselandpetroltuning.co.uk/) was added to a diesel car with trip computer, would the ...
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1answer
50 views

Where should I mount the engine management electronics in a 1993 Ford Mustang?

Bought myself a 1993 Ford Mustang (2.3L I4, the 5.0L V8 was sold with it but the car was an I4 from the factory, so it lacks the stronger brakes, suspension, etc. -- The engine would be a ...
1
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1answer
198 views

2008 Kia: stalls at idle, disconnect battery reset computer, works now, good to go?

A 2008 Kia Spectra started stalling out when idle. Revving the engine as soon as it started would prevent stalling, but as soon as it dropped below 1500 or so it would stall out again. Check engine ...
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1answer
24 views

Convert Manual to Computerized “Automatic”

I'm wondering if this is possible. With a conventional manual transmission (say, Tremec T56), could I install a small computer to press the clutch, change the gears, etc? Obviously, I would have to ...
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1answer
19 views

Is there something that will need to configure with OBD2 or computer if I dissemble?

The new cars has a lot of electronic devices and computers. As I like to maintain my family's cars I would like to know if I don't need to plug any OBD2 or computer after assemble or fix the cars. I'm ...
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2003 Ram 1500 4.7 miss firing

Need a computer pin out diagram. Cylinder 3 miss firing. Need to check wiring. Plug and coil pack are good, but no spark.