Idle speed check (Renault 19)

Since the idle speed is regulated by an electronic control unit, there is virtually nothing that can be adjusted. No adjustment work in the usual sense of the word can be carried out on the multi-point injection system. Only if in doubt should the idle speed and, accordingly, the carbon monoxide content be checked. To do this, you need an accurate tachometer - the serial tachometer on your car's dashboard is too inaccurate to check the idle speed.

1. Disconnect the idle air control valve connectors.

2. Let the engine run for approximately 30 seconds at 2000 rpm.

3. After stabilizing the idle speed, look at the number of revolutions on the tachometer and compare the obtained value with the data in the table.

4. After installing the idle air control valve multi-pin connector, the engine speed should increase by more than 1000 rpm, but then quickly stabilize at the specified value.

5. If the rotation speed fluctuates, check all plug connections and perform a test for air sucked in through leaks.

Engine	1.7 liter *	1.8 liter *	16-valve
Idle speed	Manual transmission	Automatic transmission*
	750±50/min	825±50/min.	780±50/min.	900±50/min.
CO content in exhaust
Renault Control Value	0.3 Volume, %	0.3 Volume, %	0.3 Volume, %	0.3 Volume, %
Statutory reference value	0.5 Volume, %	0.5 Volume, %	0.5 Volume, %	0.5 Volume, %

[This note was copied from the resource: www.RenaultBook.ru]

* The automatic transmission lever is in the "N" position.