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Showing results for tags 'obd'.
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On a recent drive, our friend's Jeep went into Limp Mode with these OBD error codes: We will talk about P2110 which basically means certain conditions have told the Computer (ECU/ECM) to tell the Electronic Throttle Body to go into Limp Mode (reduced RPM and restricted gearing). In the above scenario, P0776 is probably the condition that triggered the Computer, but it could be other conditions. Anyways, when a Jeep goes into Limp Mode, you will notice that Zeus has thrown the bolt at you: Jeep has these "hidden pedal dances" , the famous one is when you get Oil Service Light and you can tell the computer to forget about it and remind me 5000kms later. The Jeep Pedal Dance to tell the Electronic Throttle Body to "mind your own business, I need to go home (or garage) is: 1. Insert key to ON but DON'T START ENGINE. 2. WAIT 10 seconds for some warning lights to disappear. Check Engine Light (CEL) may remain, and that's fine. I'm talking about other lights like Battery light etc. 3. SLOWLY PRESS gas pedal within 10 seconds all the way down to the floor. 4. SLOWLY RELEASE gas pedal within 10 seconds all the way up. 4. Turn key to OFF position 5. Now turn key to ON and START ENGINE. 6. Test if Throttle Body is not in Limp Mode by pressing gas pedal. 6. Repeat if Bolt Check Light still on.
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My LandCruiser has a Pentium4 processor in its ECU, as such just like we monitor everything that's automated by computers, I want to collect what sort of parameters are good both for onroad & offroad driving. I'll start with below, mainly for offroading: 1. Vehicle Speed: seems redundant cos we have speedometer, but mine is in Miles per Hour, so having KM/h is important to avoid speed cameras π Additionally any minute drop in speed means i'm losing power for momentum. 2. Gear Actual: unfortunately my OBD dongle doesn't connect to the transmission ECU so I can't get the transmission temperature to check for overheating. But at least I know constant shifting of gears will overwork my transmission π. A bit moot cos I drive in Manual nowadays, but when the terrain is flat I do switch it back to D and let it cruise on sand. 3. Engine Load: it should be up & down, something that continuously goes up to 100% means we are maximizing our engine power and may lead to engine overheating which is why the next value is Engine Temp π 4. Engine Coolant Temp: a bit redundant as we have it on cluster panel, but at least we know if it reaches 100 Celsius π 5. Throttle Position: sometimes you floor it, but it doesn't show 100, so things to check: throttle cable if not drive-by-wire, or throttle sensor for newer cars with pedal-by-wire. Sometimes it may even mean too thick carpet that prevents full pedal being pushed all the way down π
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Somehow lost VW connectivity so decided to run an update. Some new manufacturers I havenβt even heard of.