Idle ok, but rough until engine is warm.***solved?***
Posted
#779727
(In Topic #93892)
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Idle ok, but rough until engine is warm.***solved?***
When starting from cold, idle speed is fine, but it runs rough until the engine is warm.
I did the following tests according to the instruction of the Bentley and the Haynes:
1_ cold start valve: passed
2_ thermotime switch: passed
3_ auxiliary air valve: passed
4- wam-up valve: passed
5_ cold acceleration enrichment system: passed
Where do I go from now?
Ben
Golf Cabrio 1.8 GTI Quartett, 1989, Helios Blue.
Land Rover Defender MY 2007, Carintia Blue
FIAT 600, 1954, grey
FIAT Panda 4x4 Climbing, 2009, Bianco Bianco
http://homepage.mac.com/bengi/PhotoAlbum36.html
Land Rover Defender MY 2007, Carintia Blue
FIAT 600, 1954, grey
FIAT Panda 4x4 Climbing, 2009, Bianco Bianco
http://homepage.mac.com/bengi/PhotoAlbum36.html
Posted
Local Hero
1. Measure mixture during warmup
2. Check fuel control pressure and system pressure.
Posted
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Re: Idle ok, but rough until engine is warm.
bengi3 said
Cab 1.8 K-Jetronik.
1_ cold start valve: passed
2_ thermotime switch: passed
3_ auxiliary air valve: passed
4- wam-up valve: passed
5_ cold acceleration enrichment system: passed
Sorry but any tips on how to check these lot?
thanks.
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mk1 Jetta GTI Spec.
mk1 Jetta GTI Spec.
Posted
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paul_c said
Hmmmm, tricky next without proper tools. Next 2 steps for me would be:
2. Check fuel control pressure and system pressure.
I foundoff ebay a tool to measure the system pressure for 149 euro, do you think these are money well spent?
Ben
Golf Cabrio 1.8 GTI Quartett, 1989, Helios Blue.
Land Rover Defender MY 2007, Carintia Blue
FIAT 600, 1954, grey
FIAT Panda 4x4 Climbing, 2009, Bianco Bianco
http://homepage.mac.com/bengi/PhotoAlbum36.html
Land Rover Defender MY 2007, Carintia Blue
FIAT 600, 1954, grey
FIAT Panda 4x4 Climbing, 2009, Bianco Bianco
http://homepage.mac.com/bengi/PhotoAlbum36.html
Posted
Local Hero
bengi3 said
paul_c said
Hmmmm, tricky next without proper tools. Next 2 steps for me would be:
2. Check fuel control pressure and system pressure.
I foundoff ebay a tool to measure the system pressure for 149 euro, do you think these are money well spent?
Ben
I got mine for ?50 and I reckon I had a bargain there. So you need to consider whether ?149 is good value for your needs.
Posted
Life Member
JC Whitney - Auto Parts and Car Culture
Posted
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dubboy said
Thinking of bringing this over, could share the shipping. 60$ is cheap as chips!
JC Whitney - Auto Parts and Car Culture
Great! It seems, however, that the system does not accept international orders. I wrote an email to ask how, as they have a specific email for overseas customers.
I am in Italy and I'd like to share shipping, although I guess that it is too much fuss. Keep me posted,
Ben
Golf Cabrio 1.8 GTI Quartett, 1989, Helios Blue.
Land Rover Defender MY 2007, Carintia Blue
FIAT 600, 1954, grey
FIAT Panda 4x4 Climbing, 2009, Bianco Bianco
http://homepage.mac.com/bengi/PhotoAlbum36.html
Land Rover Defender MY 2007, Carintia Blue
FIAT 600, 1954, grey
FIAT Panda 4x4 Climbing, 2009, Bianco Bianco
http://homepage.mac.com/bengi/PhotoAlbum36.html
Posted
Old Timer
Posted
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paul_c said
Hmmmm, tricky next without proper tools. Next 2 steps for me would be:
1. Measure mixture during warmup
2. Check fuel control pressure and system pressure.
I have replaced the fuel filter (the big Bosch thing on the battery side of the engine) and the car now is pretty smooth, also after a cold start. The old filter had never been replaced in 90,000 Km, i.e. 56 Kmiles.
Could be this the cause?
Ben
Golf Cabrio 1.8 GTI Quartett, 1989, Helios Blue.
Land Rover Defender MY 2007, Carintia Blue
FIAT 600, 1954, grey
FIAT Panda 4x4 Climbing, 2009, Bianco Bianco
http://homepage.mac.com/bengi/PhotoAlbum36.html
Land Rover Defender MY 2007, Carintia Blue
FIAT 600, 1954, grey
FIAT Panda 4x4 Climbing, 2009, Bianco Bianco
http://homepage.mac.com/bengi/PhotoAlbum36.html
Posted
Local Hero
Posted
Local Hero
cedar said
…the only problem is the threads which are not metric but BSP and not a perfect fit, they're okay to do the testing though. It's been in use for 10yrs now and has never leaked or damaged any threads.
The poor fit maybe due to one part being a tapered thread, and the other being straight. I use BSP stuff at work from time to time and it's a real faff to match.
HTH
Rich
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