does the car just feel lacking in power?
My zetec had a lack of power/acceleration when the catalytic convertor
failed. one of the blocks had fallen over.
the bits choke the exhaust backing up the pressure. less throttle =
less back pressure so engine breathes and accelerates up ok.
give the cold cat a bash with your fist. if it clonks inside or sounds
like a maracas then its failed.
Gary ex Q
Rolf 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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