This applied to EvoX and It might be applicable to other Evos with the same symptom...
Symptom : Rough Idling after spirited drive, Boosts or when is engine hot...
What to do? : Check the Fuel Pressure Regulator Vacuum Hose
http://www.zerotohundred.com/newforums/members/johnsonlam-albums-diy-fix-common-evox-idling-problem-picture10035-disconnected-vacuum-hose-to-intake-manifold.jpg
I searched in Google on this symptoms and was surprised to find more than 20 EvoX owners having this issue...
Here is the zoomed out view. It is located under the engine cover... So just remove the plastic cover for a better view.
http://www.zerotohundred.com/newforums/members/johnsonlam-albums-diy-fix-common-evox-idling-problem-picture10034-evox-vacumm-hose-to-intake-manifold-disconnected-by-itself.jpg
A simple fix will be just to cable tie it...
however, I take an additional step to ensure it will not happen again.
I realised the hose was hardened, probably due to the heat, so... I am replacing it with Silicon Hose.
http://www.zerotohundred.com/newforums/members/johnsonlam-albums-diy-fix-common-evox-idling-problem-picture10033-using-a-better-quality-silicon-vacuum-hose.jpg
Just cable tie it back to the original positions, and it's DONE!
http://www.zerotohundred.com/newforums/members/johnsonlam-albums-diy-fix-common-evox-idling-problem-picture10032-fixed-using-silicon-vacuum-hose-to-replace-faulty-old-one.jpg
Definitely fixed my Idling problem... and I think.. will get better mileage on my full tank too... we will see!
Share to all your EvoX, Ralliart, 4B11T friends... !
Symptom : Rough Idling after spirited drive, Boosts or when is engine hot...
What to do? : Check the Fuel Pressure Regulator Vacuum Hose
http://www.zerotohundred.com/newforums/members/johnsonlam-albums-diy-fix-common-evox-idling-problem-picture10035-disconnected-vacuum-hose-to-intake-manifold.jpg
I searched in Google on this symptoms and was surprised to find more than 20 EvoX owners having this issue...
Here is the zoomed out view. It is located under the engine cover... So just remove the plastic cover for a better view.
http://www.zerotohundred.com/newforums/members/johnsonlam-albums-diy-fix-common-evox-idling-problem-picture10034-evox-vacumm-hose-to-intake-manifold-disconnected-by-itself.jpg
A simple fix will be just to cable tie it...
however, I take an additional step to ensure it will not happen again.
I realised the hose was hardened, probably due to the heat, so... I am replacing it with Silicon Hose.
http://www.zerotohundred.com/newforums/members/johnsonlam-albums-diy-fix-common-evox-idling-problem-picture10033-using-a-better-quality-silicon-vacuum-hose.jpg
Just cable tie it back to the original positions, and it's DONE!
http://www.zerotohundred.com/newforums/members/johnsonlam-albums-diy-fix-common-evox-idling-problem-picture10032-fixed-using-silicon-vacuum-hose-to-replace-faulty-old-one.jpg
Definitely fixed my Idling problem... and I think.. will get better mileage on my full tank too... we will see!
Share to all your EvoX, Ralliart, 4B11T friends... !
