Post by
Aus94Q45 »
https://forums.nicoclub.com/aus94q45-u136.html
Thu Feb 16, 2006 8:57 am
Before changing starters -- question -- is a rough idle or mechanically rough start?
Back to the battery. Clean the terminals. It does not take much corrosion under the connectors to disrupt the voltage. i have seen several Q's with acid build up under the connectors and inside the red connector that attaches serveral circuits off the post connection. Corrosion forms under the connections quickly. This can cause a rough idle. I just had this issue on my wife's car last week. A quick cleaning cured it. I have had the same on the Q.
BG can be obtained online, Joe, or local auto parts places. It is the recommended additive for a quick injector cleaning.
Again, best to try the easy (cheap) stuff first. These cars are well built and many problems are remedied by very basic care and maintenence.
More advanced on start up, assuming it is not a mechanical cranking issue, would be the MAF, IAC, and injectors.