Honda Civic 95 idling problem

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Honda Civic 95 idling problem

My father owns a Civic 95 and runs it mostly on CNG. It has a problem that when the rpms are set at about 700 for CNG and the A/C is switched on they drop to 200-300 and nearly stall the engine. However, at times the rpms go to about 1200 which is normal, I think, for taking the load of the A/C. However, this drop in rpms also occurs even if the A/C is not on and after sometime the engine returns to normal (700 rpms). As a result my father had the rpms permanently set at about 1400 to cater for A/C load but this results in poor fuel economy. What could be the reason? I would be grateful if anyone could diagnose the fault. Thanks.

Gari.pk User 2876 asked on 30 Jun 2010 12:21:36 pm

1 Answer

288 views |

Zayan - on 30 Jun 2010 12:21:45 pm

Hello!
looks like bad Vaccum IDler......there's a vacuum idler which opens up when you turned on A/C it maintains RPMS when A/C is switched on...probably its vacuum pipe is loosened or removed or idler itself gave up.......
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Thanxxx