Revs Hunting As It Warms Up, Eventually Cuts Out

[Quarryman 1]

Got a bit of work done on the car to suspension and asked my mechanic to check what i suspected was a running rich issue.

 

He adjusted the AFM so it idles much lower and eimissions are down to 4% CO2.

 

However it seems the revs hunt now and as it warms up it eventually hunts to low and cuts out.

 

what should i be checking? The mechanic reckons the AFM might be dodgy but it made a huge improvement to the running when i replaced the old one with it recently.

 

This problem was probably around before but the fact that the car was running rich and i had the throttle control turned up probably masked it.

[Baz 421]

4% CO is still a bit much, and if you've adjusted the AFM then adjust the idle too to suit. There's a good guide on the main site on what and how to check all the relevant components.

[Quarryman 1]

4% CO is still a bit much, and if you've adjusted the AFM then adjust the idle too to suit. There's a good guide on the main site on what and how to check all the relevant components.

 

 

ok so it looks like, in terms of airflow i need to look at the AFM and the SAD and any broken or loose pipes. Anything else?

[welshpug 1,666]

throttle initial settings, air bypass screw, and TPS setting (and whether it actually works)

[Quarryman 1]

throttle initial settings, air bypass screw, and TPS setting (and whether it actually works)

 

hey there, bit of a newbie with all this stuff. How do I check the things you mentioned above?

[TT205 42]

There's a good guide on the main site on what and how to check all the relevant components.

 

In case you didn't find it

http://www.205gtidrivers.com/articles/e3-injection.html

[Quarryman 1]

In case you didn't find it

http://www.205gtidrivers.com/articles/e3-injection.html

 

 

Got it thanks. I'm going to take a look at the SAD and check for any damaged air hoses this evening.

[Quarryman 1]

Swapped the afm out with a known good one - problem solved!