1.4 MPI Cold Start problem

  #1  
Old 08-11-2004, 05:08 AM
Thread Starter
Join Date: Aug 2004
Location: Ireland
Posts: 2
Default 1.4 MPI Cold Start problem

Just recently bought a 2000 Polo saloon with an 8-valve 1.4 MPI engine. When I start it from cold it seems to hunt for the correct idle speed, going from about 600 to 1200 rpm and back. It does this for 20/30 seconds. The if I'm drivingat very low revs(lets say trying to get out of a tight parking spot) it does this hunting business again when I put a load on the engine. If I can just take off at reasonable pace itseems fine. Once the engine has warmed up it seems to go away. The temp gauge gives a reading of 90 when it's warm. I have bought a coolant temp sensor which I still need to fit (just in case).
 
  #2  
Old 08-18-2004, 05:08 AM
Thread Starter
Join Date: Aug 2004
Location: Ireland
Posts: 2
Default RE: 1.4 MPI Cold Start problem

In hindsight the issue was at low revs in general. Even when the engine was at 90 getting in or out of at tight parking spot was a bit of a nightmare. After changing the coolant temp sensor there was no change. Took off the engine cover to change the two air filters, found quite a bit of oily gunk in the throttle area. Cleaned it up using carb and throttle cleaner.....problem disappeared. When I drained the old oil it looked pretty goupey, may have been the source of the excessive gunk in the throttle causing it to stick at low revs.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
beat cj
Volkswagen Jetta/Bora
1
12-12-2008 08:24 PM
Gearjammer
Volkswagen Jetta/Bora
4
11-29-2008 07:53 AM
Mr. Lee
Other Volkswagen Models
0
10-12-2008 11:09 AM
rocketsci
Volkswagen Jetta/Bora
3
01-13-2008 09:01 AM
DeepC
Volkswagen Polo
3
01-31-2007 11:26 PM


Thread Tools
Search this Thread
Quick Reply: 1.4 MPI Cold Start problem


Advertising
Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.