Having problems with your 1990 Volvo 240 ?

When im idling in park or neutral engine revs high to low and car wont start sometimes but has no trouble cranking.engine is a 2.2liter volvo 240dl ,1990

Posted / edited by AnonymousUser on : 10-08-2020

Answers :

These cars used a motor underneath the intake manifold to control the idle. The crank sensor may need to be checked, the signal to the motor needs to be checked. If you have a seperate control module (passenger footwell, right side, behind the plastic) under the main fuel control module, you may want to check the wiring on that as well. The Haynes manual for these vehicles describe the system very well.
Vacume leak intake manifold gasket
Repair Help & Product Troubleshooting for 1990 Volvo 240

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