WebNov 14, 2011 · Join Date: Feb 2011. Location: South El Monte, CA. Posts: 324. Quote: Originally Posted by Nick91. i have a 997 here with the typical p2187 and p2189. i have … WebJan 4, 2005 · Engine. Vehicle Information: Year: 1997; Body Type: Coupe; Total Mileage: 30000; I have the same rough idle as described in the 1/2/05 post. Pressing the lower AC …
Porsche 911 surging idle repair-How to--HD - YouTube
The spark plugs may be misfiring or the coil packs may need to be replaced. One of the more common issues with a rough idle is caused by bad spark plugs and coil packs. Replacing them is not the easiest maintenance job you will do, but they aren't so difficult that you couldn't do it in your garage. The most … See more Vacuum leaks will be readily apparent at cold idle. Vacuum leaks can be detected with smoke tests which can be done professionally or done by a novice without much trouble. 1. Start … See more Bad or old gas can cause the injectors to gum up, resulting in a rough idle. Old gas doesn't burn well. If your Porsche has been sitting for a while, the … See more Many owners have found that driving their car like Miss Daisy doesn't bode well for the Porsche engine. While not advocating breaking any driving laws, the Porsche engine is built for … See more The MAF sensor or plenum could need a good cleaning. The mass air flow sensor could be dirty. They may show as an intermittent problem. It is relatively inexpensive to … See more WebApr 27, 2015 · A common cause of a rough idle on the 928 is the Mass Air Flow sensor in the intake tract. The MAF sensor is used to meter the air-to-fuel ratio based on the … onsite home sales seal beach
Smoothing Out the Shakes — How to Fix a Rough Engine Idle
WebMay 5, 2015 · If the CHT sensor is bad, it will tell the ECU that the car is properly warmed up when it is not. This can cause too rich of a fuel mixture similar to what a bad O2 sensor (or MAF unit) will do. This will cause very rough starts and idles. Replacing the CHT will usually solve the problem straight away. Figure 3. WebSymptoms : Engine Runs Rough or Lacks Power ... Suspicious of a cracked liner, we decided to let the engine run at idle while we ate lunch. The engine ran perfectly at a steady temperature for approx. 55 mins. ... Porsche decided to fit the 997.1 Turbo engine with plastic water pipe outlets. WebMay 1, 2015 · This article explores some reasons for black soot on your 997's tailpipes and outlines a series of questions you should consider to narrow down the issue. Figure 1. … iodate reduction