Engine vibrating at idle
#1
Scooby Regular
Thread Starter
Engine vibrating at idle
Hi guys
I have an STI v3 and particularly when cold the car tends to have a slight vibration/judder on idle. This can be felt through the car when sitting at lights.
Car honestly drives great and is defo worst when cold.
Here are my findings so far
*The revs remain constant on idle - no major fluctuations
*The car has all the power expected - keeps up with my brothers 335i and 335d on spirited runs
*No smoke out of exhaust to be concerned out
*Spark plugs changed and properly gapped recently
*Timing belt changed before I got car (car has always idled this way since I got it)
*No engine management light or codes being displayed
* I will double check but does not happen every time the car is started
Any ideas on what I should target first as "quick wins"? Was thinking of replacing HT leads as they looks old - is there a way to test for faulty HT leads?
I have an STI v3 and particularly when cold the car tends to have a slight vibration/judder on idle. This can be felt through the car when sitting at lights.
Car honestly drives great and is defo worst when cold.
Here are my findings so far
*The revs remain constant on idle - no major fluctuations
*The car has all the power expected - keeps up with my brothers 335i and 335d on spirited runs
*No smoke out of exhaust to be concerned out
*Spark plugs changed and properly gapped recently
*Timing belt changed before I got car (car has always idled this way since I got it)
*No engine management light or codes being displayed
* I will double check but does not happen every time the car is started
Any ideas on what I should target first as "quick wins"? Was thinking of replacing HT leads as they looks old - is there a way to test for faulty HT leads?
Last edited by mellinator2k; 15 September 2018 at 09:17 PM.
#2
Scooby Regular
iTrader: (7)
Hi guys
I have an STI v3 and particularly when cold the car tends to have a slight vibration/judder on idle. This can be felt through the car when sitting at lights.
Car honestly drives great and is defo worst when cold.
Here are my findings so far
*The revs remain constant on idle - no major fluctuations
*The car has all the power expected - keeps up with my brothers 335i and 335d on spirited runs
*No smoke out of exhaust to be concerned out
*Spark plugs changed and properly gapped recently
*Timing belt changed before I got car (car has always idled this way since I got it)
*No engine management light or codes being displayed
* I will double check but does not happen every time the car is started
Any ideas on what I should target first as "quick wins"? Was thinking of replacing HT leads as they looks old - is there a way to test for faulty HT leads?
I have an STI v3 and particularly when cold the car tends to have a slight vibration/judder on idle. This can be felt through the car when sitting at lights.
Car honestly drives great and is defo worst when cold.
Here are my findings so far
*The revs remain constant on idle - no major fluctuations
*The car has all the power expected - keeps up with my brothers 335i and 335d on spirited runs
*No smoke out of exhaust to be concerned out
*Spark plugs changed and properly gapped recently
*Timing belt changed before I got car (car has always idled this way since I got it)
*No engine management light or codes being displayed
* I will double check but does not happen every time the car is started
Any ideas on what I should target first as "quick wins"? Was thinking of replacing HT leads as they looks old - is there a way to test for faulty HT leads?
#7
Scooby Regular
My v3 sti had the same symptoms, predominantly a lumpy idle when hot or cold. This was even after a new short block had been fitted!
I have just replaced my lambda/o2 sensor and it has removed these symptoms completely, the car also doesn't fall flat on it's face between gears any more! The sensor was approx £200 from subaru.
I have just replaced my lambda/o2 sensor and it has removed these symptoms completely, the car also doesn't fall flat on it's face between gears any more! The sensor was approx £200 from subaru.
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#9
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same sort of problem I just had with mine , checked the ecu and it read code 32 (lambda sensor ) , I think the sensor has a heater in it which can fail which makes it worse when engine is cold , got a genuine one off the shelf from a s performance for a nice price
#12
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Thread Starter
What is easiest way to read codes on a 1997 v3 sti ?
This ? http://www.scoobypedia.co.uk/index.p...eadingECUCodes
Thanks
This ? http://www.scoobypedia.co.uk/index.p...eadingECUCodes
Thanks
Last edited by mellinator2k; 18 September 2018 at 09:16 PM.
#13
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What is easiest way to read codes on a 1997 v3 sti ?
This ? http://www.scoobypedia.co.uk/index.p...eadingECUCodes
Thanks
This ? http://www.scoobypedia.co.uk/index.p...eadingECUCodes
Thanks
#15
Scooby Regular
Yes I had a check engine light after about 12 months of ownership but it had done the vibrating thing from the start. code 32 for me too once the CEL started appearing
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steve1192
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06 June 2006 10:50 AM