D-Jetronic, K-Jetronic and ignition for classic cars

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Auxiliary air valve

Chapter 9 of Dr-DJet's article series describes auxiliary air valve (or air slide valve), cold start valve and thermo time switch. They are not controlled by ECU (exception BMW) and determine the engines cold run.

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Written by Dr-DJet

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Created: 31 March 2015

Last Updated: 01 June 2016

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Read more: D-Jetronic chapter 9: Cold start and auxiliary air (aka air slide) valve

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D-Jetronic ECU pinout

Appendix B of D-Jetronic article series by Dr-DJet lists pinout of all ECUs of all D-Jetronic equipped cars. With this you can test your D-Jetronic.

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Written by Dr-DJet

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Created: 06 December 2014

Last Updated: 07 April 2019

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Read more: D-Jetronic chapter appendix B: Pinout of ECUs by car manufacturer

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Checklist

Chapter 14 of article series by Dr-DJet gives you a detailled checklist for ticking off every single action for a systematic test of your car. All actions are linked to descriptions in article series.

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Written by Dr-DJet

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Created: 06 May 2015

Last Updated: 03 March 2022

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Read more: D-Jetronic chapter 14: troubleshooting check list

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Replacing wiring harness

Chapter 10 of D-Jetronic article series by Dr-DJet describes replacement of your engine wiring harness.

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Written by Dr-DJet

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Created: 18 March 2015

Last Updated: 18 August 2022

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Read more: D-Jetronic chapter 10: Engine wiring harness