please help, engine troubles Options

[jayi12-15psi]

guys, my engine has been idling rough lately, I am noticing a hissing noise coming from behind the intake manifold, and I have lost a little bit of acceleration, plus a little bit of backfire. Now I know thaT Backfire is caused by leftover fuel that wasn't burned.

so my question is, Is there some kind of sensor calling for more fuel? Is there some kind of vacuum hose loose?

any ideas would be helpful

oh and I've heard that the check engine light usually relates to pollution control devices in the engine.

please help me with any ideas.

-Jim

[west_minist]

yep

But it is kind of strange since the vacuum is needed to add more feel up top as it open the diaphram some more to let more fuel through.

I had to block the hose because the car was now getting extra air which made the engine run lean, hence the increase in high idle to compensate for than.

But this is the 4age 20v.

My advice to him is to him is to check all vacuum hoses. If you have a map sensor, check the host you to that.

Again, I am not familiar with the 7afe

The check light is relate to problems the ecu is having,. It notify when something is wrong.

This post has been edited by west_minist: May 27, 2003 - 6:04 AM