Hey :SNSign:
First let me say I have searched and gone through the "Surging Idle Checklist" and still not really sure, though honestly I haven't completed any steps that required a voltmeter as this is not something I have at my disposal but can obtain if you guys think the situation warrants it.
My car is mostly stock (few mods in sig) and ever since I swapped the intake the idle has a been a litte strange, a little lopey but no real big deal until about 3 days ago. All of sudden at idle and especially in drive the car sounds like one of those big time dragsters at the track rumbling and shaking with the RPM's bouncing between 550-800. This happens about 2 minutes after startup and then any time the car is stopped at a stoplight etc...
There is also what begins as a low rumble coming from the intake inlet side of the engine either from the EGR or lower maybe the #4 cylinder? The surging goes away and the car drives fine anything above 1k but the sounds turns into some sort of a click, like the sound a go-kart makes as the rpms increase, i am thinking this might be an EGR leak and the source of my problems.
So far I have tried resetting the idle with the IAC disconnected, cleaning the MAF and TB, checked and repaired a few vaccuum leaks which were throwing CEL codes and cleared that, replaced the fuel filter (I think it was original
). I don't have access to my code reader at the moment but the codes I was getting were 311 and 314.
The other thing is that I have never checked my timing...could that be causing the problem? I know I have to run 89 octane or she pings, again don't have access to a timing light but I could get one if need be. If it is the EGR how do I fix that? I know i can remove it but is that a challenging thing to do?
Ask all the questions you need, i'll try to pop on often and check for replies. Thanks so much for all the help!
First let me say I have searched and gone through the "Surging Idle Checklist" and still not really sure, though honestly I haven't completed any steps that required a voltmeter as this is not something I have at my disposal but can obtain if you guys think the situation warrants it.
My car is mostly stock (few mods in sig) and ever since I swapped the intake the idle has a been a litte strange, a little lopey but no real big deal until about 3 days ago. All of sudden at idle and especially in drive the car sounds like one of those big time dragsters at the track rumbling and shaking with the RPM's bouncing between 550-800. This happens about 2 minutes after startup and then any time the car is stopped at a stoplight etc...
There is also what begins as a low rumble coming from the intake inlet side of the engine either from the EGR or lower maybe the #4 cylinder? The surging goes away and the car drives fine anything above 1k but the sounds turns into some sort of a click, like the sound a go-kart makes as the rpms increase, i am thinking this might be an EGR leak and the source of my problems.
So far I have tried resetting the idle with the IAC disconnected, cleaning the MAF and TB, checked and repaired a few vaccuum leaks which were throwing CEL codes and cleared that, replaced the fuel filter (I think it was original
). I don't have access to my code reader at the moment but the codes I was getting were 311 and 314.The other thing is that I have never checked my timing...could that be causing the problem? I know I have to run 89 octane or she pings, again don't have access to a timing light but I could get one if need be. If it is the EGR how do I fix that? I know i can remove it but is that a challenging thing to do?
Ask all the questions you need, i'll try to pop on often and check for replies. Thanks so much for all the help!
) And also check the connection for the egr tube at the header pipe, as these can be problematic. But IMO that "clicking" sound you are hearing could actually be pinging as a result of a vaccum leak (unmetered air entering the engine). 
