Yes, of course, on the engines with the temp sensor in the inlet
manifold there is only one wire for the cam sensor and the other wire is
commoned with the other sensors.
On the engines with the temp sensor in the intake pipe / air box then
there is no wire on the engine connector and the cam sensor has 2 wires.
So, have you now got the air temp sensor fitted ?
Jim
Rolf wrote:
Jim, you pulled the right trigger.
How can I overlook a basic information input to the ecu as an airtemp
sensor?
As you say, it's being read to compensate for the amount of air at
different temperatures in order to get the mixture right.
Your remark started me thinking and in the end I pulled out the loom
from the enginebay and crossreferenced it to the old one. Colour by
coulor using Hayens manual and again using an ohmmeter.
Two pieces of written paper along the way I found 1 wire responsible
for the airtemp sensor being used for the cam sensor in the new loom,
thus two sensors being at fault.
(And it ran...) These two sensors are using the same colourcode:
white/violet and brown/white. Haha...
Rectified this and relearned the ecu for a firm drive and it now
pulled remarkebly well.
will see tomorrow if it stays that way.
Thanks to you all for pointing out, all remarks will be stored for
further use!
Rolf
On 4 mei, 10:00, Jim Hearne <[email protected]> wrote:
24hrs is a bit overkill, 5 mins is more than enough !
Jim
Matthew Wastell wrote:
Ate you using a different manifold and injectors with old ecu? It
could be they are mismatched. Otherwise if you swapped the ecu and no
intake temp sensor it could be missing that.
You can also easily scramble the learning map on the ford ecu so need
to follow the bed in procedure. Unfortunatly I can't remember exactly
how it goes, but something like, leave battery off for 24 hours, start
and idle for 5 minutes then do a full and varied drive cycle for 30 mins.
Give us a few more pointers and sure we can give you more suggestions.
Matthew
(2.0 litre zetec turbo 2+2)
On 3 May 2010, at 21:26, Rolf <[email protected]> wrote:
Hi all,
I recently swapped my 1600 zetec engine (1996) for a slightly newer ,
also 1996 engine, but there are some differences.
The intakemanifold on the old engine is alloy, the newer is plastic.
The swap took a while, but everything went in place. Only an intake
air temp sensor was not connected because there used to be none.
All went well, but after a drive on the motoway i noticed lack of
power. On the return journey the engine rocked about at 30mph. When
climbing in the revs on full throttle, it staggers at 4000rpm.
Releasing the throttle a bit "releases"more power and it climbes to
6500 rpm smoothly. It's hard to describe, because it doesn't happen
all the time.
What can it be?
The oxygen sensor replaced(coulored red , due to additives (?)
accoring to Bosch.
Tried old throttle position sensor on newer throttlehousing.
Tried to replac the airmass sensor, but not yet possible due to
"plumbing"problems...
Tried resetting the computer.
Does any zetec specialist have a clue?
Regards,
Rolf
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