Audi 80/90/Coupe

Since 1986-1991 of release

Repair and car operation

2.3.1.4. Check and adjustment of maintenance CO

THE GENERAL DATA

The maintenance WITH in exhaust gases is shown by the special measuring instrument of pressure connected to a control plug, placed in the engine chamber. Certain light impulses of diodes of a measuring instrument testify to the certain maintenance WITH. It is not necessary to use any other testing lamp as the big backlash of a current can cause failure of electronic systems.

PERFORMANCE ORDER

1) include a pressure measuring instrument between a control plug 1 (a separate plug on the end of a blue cable) and a positive clip of the accumulator 2) start the engine and within approximately 1 minute at speed of rotation more than 2000 rpm warm up it that the probe of Ljambda has reached normal working temperature 3) it is necessary to observe shone diodes of a measuring instrument. At the speed of rotation corresponding to turns of idling of the engine, diodes should flicker with frequency of 1.5 times in a second. It means that the maintenance WITH is admissible by a probe of Ljambda 4) make exact measurement of the maintenance WITH by means of the analyzer of exhaust gases. If, despite correct indicators диодного a tester, the valid size WITH, measured by means of the analyzer of exhaust gases is behind admissible norm, it is necessary to check up a probe of Ljambda 5) if the tester diode is shone constantly, it means that a toplivno-air mix of idling very "rich". If the diode диодного a tester is not shone, it means that a toplivno-air mix very "poor" 6) blinking of shone diodes with frequency 25 in second means that the probe of Ljambda is damaged or damaged a connecting wire of a probe The prevention The probe of Ljambda can be smoked that will be at the bottom of faulty work. 20-minute fast driving in the country will clean possible закопченность then it is necessary to make check anew. 7) take out a plug of a wire of a probe of Ljambda from a nest 1. The nest follows заизолировать изоляционной a tape 8) it is necessary to observe indications диодного a tester. Shone diodes should flicker 9) remove a safety overlay of an adjusting bolt And the maintenance WITH in exhaust gases. It is necessary to "make a hole" plastic заглушку, and then to screw a screw in заглушку and all it to take out together 10) rotating a small screw-driver an adjusting bolt And to the left and to the right, to establish the demanded maintenance WITH in exhaust gases. During adjustment the fan of system of cooling should not work 11) an adjusting bolt before rotation is necessary for protecting, having pressed new plastic заглушку 12) disconnect a measuring instrument WITH from a measuring tube in the forward muffler, and a measuring tube close 13) disconnect диодный a tester 14) remove изоляционную a tape and anew connect a plug of a wire of a probe of Ljambda to a nest 15) connect the pipeline of removal of air to удалителю air of the main thing oil картера