AFR readings inconsistent
01 October 2002, 08:24 PM
#1
Scooby Regular
Thread Starter
Join Date: Sep 2002
Posts: 950
Likes: 0
Received 0 Likes
on
0 Posts
Scoobymania AFR(LambdaLink) fitted and generally stays on the 9%CO mark, however can read sporadically around the middle of the scale, lighting up on the 3,5,7% lights.
Can happen when car is very hot after good blast on motorway and as tonight just as the car reached running temps.
Could it be the colder weather and how do I compensate?
There is also a worrying vibration which I can feel from my feet on the pedals. Could be a wheel bearing or just the fact my exhaust causes more noise now unresonated centre is on. Will check bearings this week.
Car is MY97, full de-cat, Dawes, itg with reasonator removed.
Can happen when car is very hot after good blast on motorway and as tonight just as the car reached running temps.
Could it be the colder weather and how do I compensate?
There is also a worrying vibration which I can feel from my feet on the pedals. Could be a wheel bearing or just the fact my exhaust causes more noise now unresonated centre is on. Will check bearings this week.
Car is MY97, full de-cat, Dawes, itg with reasonator removed.
01 October 2002, 08:45 PM
#2
Used to work here!!
Join Date: Jun 2000
Location: Peterhead, Scotland
Posts: 1,488
Likes: 0
Received 0 Likes
on
0 Posts
I get some pedal vibration since I fitted the downpipe, at idle the vibration is in time with the engine/exhaust.
IIRC the standard Lambda sensor becomes fairly inaccurate after a good blast when it gets really hot, I checked mine with a scope once and after a good thrapping the trace was all over the shop.
Stuart
IIRC the standard Lambda sensor becomes fairly inaccurate after a good blast when it gets really hot, I checked mine with a scope once and after a good thrapping the trace was all over the shop.
Stuart
Thread
Thread Starter
Forum
Replies
Last Post
Sam Witwicky
Engine Management and ECU Remapping
17
13 November 2015 10:49 AM