TII Engine problems - Help please
06-28-02, 01:55 PM
#1
Junior Member
Thread Starter
Join Date: Jun 2002
Location: Sheffield, uk
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
TII Engine problems - Help please
Since re-building my 13B TII engine(uk spec), I have two problems:
1) When warmed up the tickover tends to sit around 1200 rpm, but sometimes goes back to the normal 850 rpm
2) It quite often smokes noticably at tickover, not too badly.
I have no ecu fault codes, timing is correct. Maybe its a wrongly connected vacuum pipe?, other elecrical problem with emmissions stuff?
Performance is strong as ever and sounds normal.
Any suggestions welcome.
1) When warmed up the tickover tends to sit around 1200 rpm, but sometimes goes back to the normal 850 rpm
2) It quite often smokes noticably at tickover, not too badly.
I have no ecu fault codes, timing is correct. Maybe its a wrongly connected vacuum pipe?, other elecrical problem with emmissions stuff?
Performance is strong as ever and sounds normal.
Any suggestions welcome.
06-28-02, 02:08 PM
#2
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,826
Received 2,594 Likes
on
1,842 Posts
the inconsistant idle (tickover) could be the thermowax
http://fc3s-pro.com/TECH/HOWTO/TBM/tb2.jpg (the thing with the 3 screws) could be sticking/failed. this is the thing that makes the cold idle fast.
the smoking i would blame on the turbo?? vacuum leaks will make the car flood (even tiny ones), it could also maybe be the throttle position sensor
mkie
http://fc3s-pro.com/TECH/HOWTO/TBM/tb2.jpg (the thing with the 3 screws) could be sticking/failed. this is the thing that makes the cold idle fast.
the smoking i would blame on the turbo?? vacuum leaks will make the car flood (even tiny ones), it could also maybe be the throttle position sensor
mkie
06-28-02, 02:26 PM
#3
Junior Member
Thread Starter
Join Date: Jun 2002
Location: Sheffield, uk
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
I did have a failled full range throttle position sensor recently which I replaced with a used one. I'll check this with over its full range, but would expect an error code if this was faulty as was previously the case.
Yes, i also suspected the turbo maybe to blame for the smoke, don't know of any easy way to diagnose this though...
Yes, i also suspected the turbo maybe to blame for the smoke, don't know of any easy way to diagnose this though...
06-28-02, 05:24 PM
#4
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,826
Received 2,594 Likes
on
1,842 Posts
its very hard to diagnose a turbo because its bolted to the motor and that can smoke too.
mike
mike
Thread
Thread Starter
Forum
Replies
Last Post
Megasquirt timing map and EGt ?? what do you guys think
immanuel__7
Megasquirt Forum
3
08-22-15 09:34 PM
KAL797
Test Area 51
0
08-11-15 03:47 PM