High tickover after cat change

7

77rons

New Member

Posts

12

• Feb 24, 2013

• #1

I replaced the cat and downpipe on my '99 1.8 petrol freelander. Started the engine and the revs sat over 2k. Thought it might just be the choke but it stayed high even after warming up. Gave the throttle a tickle and it coughed slightly and the revs stayed higher than 1500. Played with the throttle, reving up to 3500 and letting go and it coughs on the way up and stays high. Any ideas?
Thanks

 

The Mad Hat Man

Well-Known Member

LZIR Despatch Agent

Posts

83,255

Location

Embasinga stocæ

• Feb 24, 2013

• #2

old cat was blocked?

 

Soloby Rob

Banned

Posts

7,714

Location

In a house, not far from somewhere

• Feb 24, 2013

• #3

77rons said:

I replaced the cat and downpipe on my '99 1.8 petrol freelander. Started the engine and the revs sat over 2k. Thought it might just be the choke but it stayed high even after warming up. Gave the throttle a tickle and it coughed slightly and the revs stayed higher than 1500. Played with the throttle, reving up to 3500 and letting go and it coughs on the way up and stays high. Any ideas?
Thanks

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A 1.8 petrol engine running is a bonus, rejoice in your good fortune.

 

7

77rons

New Member

Posts

12

• Feb 24, 2013

• #4

Lol. Great engine! Think its just settling into breathing again and adjusting the ecu to suit?

 

timtheenchanteruk

Well-Known Member

Posts

4,633

Location

Leeds

• Feb 24, 2013

• #5

did you disturb any sensor wiring when you were changing the cat, lambda sensors?? no idea specifically of the freelander, just other motors have at least one post cat, some pre and post