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Author Why is my car limiting at 5000rpm?
steel
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Registered: 22nd Aug 09
Location: Southport/Liverpool
User status: Offline
10th Jul 10 at 17:11   View User's Profile U2U Member Reply With Quote

I have recently had an engine change on my x14xe to an x16xe

As far as i'm aware everything has been swapped over correctly and the car runs great except that it limits just shy of 5000revs :/

The EGR valve has been taken out and blanked too, a friend of mine beleives that the ecu may have gone into "limp" mode because of this, how would i know if this was the case and what could i do to fix it?

Tomorow im going to be taking the car back to my mates garage to have a look at wh could be causing it, any ideas on what i should be looking for would be greatly apreciated



oh and the ECU has been changed over along with chip and transponder

[Edited on 10-07-2010 by steel]
reidy22
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Registered: 10th Aug 09
Location: scotland-ayr
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10th Jul 10 at 17:24   View User's Profile U2U Member Reply With Quote

could be crank sensor ma gsi did this
JaffaTB
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Registered: 7th Oct 09
Location: Sheffield, South Yorkshire
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10th Jul 10 at 22:00   View User's Profile U2U Member Reply With Quote

I thought the EML light came on when the engine was in limp home mode
steel
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Registered: 22nd Aug 09
Location: Southport/Liverpool
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10th Jul 10 at 23:58   View User's Profile U2U Member Reply With Quote

yer the EML light is on constantly :/
IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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10th Jul 10 at 23:59   View Garage View User's Profile U2U Member Reply With Quote

have you done a paper clip test on it?

Limecat
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Registered: 25th Jun 05
Location: The Internet
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11th Jul 10 at 00:08   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by reidy22
could be crank sensor ma gsi did this


No, a CPS failure would see no spark or fuel.
Kevxx
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Registered: 14th May 08
Location: Forfar, Angus
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11th Jul 10 at 00:48   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by JaffaTB
I thought the EML light came on when the engine was in limp home mode


exactly that, your options are to paperclip or get a diagnostics done for the fault.


john_c20xe
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Registered: 10th Feb 08
Location: Eastbourne, EastSussex
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11th Jul 10 at 16:57   View User's Profile U2U Member Reply With Quote

does it run lumpy?
babs72234
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Registered: 9th Feb 09
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11th Jul 10 at 18:46   View User's Profile U2U Member Reply With Quote

its a knock sensor me and ma mate spent hours finding it out on his car.
steel
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Registered: 22nd Aug 09
Location: Southport/Liverpool
User status: Offline
12th Jul 10 at 17:30   View User's Profile U2U Member Reply With Quote

Thanks for the help guys

where abouts would the knock sensor be located?

will be doing a diagnostics check when possible
Sean-B
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Registered: 1st May 07
Location: Wolverhampton Drives: 200SX S14a
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12th Jul 10 at 17:34   View User's Profile U2U Member Reply With Quote

Most people leave the EGR valve still plugged in but blanked off.

This may be the cause of your problems.
andyc1234
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Registered: 7th Nov 06
Location: Lancashire
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12th Jul 10 at 17:41   View User's Profile U2U Member Reply With Quote

most probably be knock sensor its down the back of the engine below the inlet. anything else would make it run like shite
steel
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Registered: 22nd Aug 09
Location: Southport/Liverpool
User status: Offline
12th Jul 10 at 18:13   View User's Profile U2U Member Reply With Quote

thanks guys, yer i've also heard that it's possible that i may have the wrong ecu

the ecu is from a 1.6 tigra with a part number of 16213739, looking on the net they used this ecu from 95-97 for both the corsa and the tigra x16xe engines

whereas the the 1.6 ecu used in the corsa and the tigra from 97 has a part number of 16214249?

my car was made in 99, not aware of the year of the engine though

would this mean anything?
very confused haha
JaffaTB
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Registered: 7th Oct 09
Location: Sheffield, South Yorkshire
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12th Jul 10 at 20:44   View User's Profile U2U Member Reply With Quote

Have you tried with the EGR plugged back in? Mine was blanked but still plugged in and my EML still used to come on after a while
cookie-x14xe
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Registered: 14th May 09
Location: Bideford, Devon
User status: Offline
13th Jul 10 at 12:11   View User's Profile U2U Member Reply With Quote

mates car was doin this a while ago when we had the inlet and piping off, there was a connector at the bk of the engine bay behind the inlet manifold tht we forgot to reconnect after and was causin a very early rev limit, hope this helps.

 
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