Vauxhall Tigra Engine over revving

1999 Vauxhall Tigra Problem

Ref#16157
CarVauxhall Tigra Chequers
Year1999
OwnerMark and Jill
Posted14/12/2013
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Last month I had an issue with this car cutting out and losing power. I found a loom with 3 cables in that ran down the left hand side of the engine (above the cam belt) had been trapped under the cover that bolts on top of the engine. Two of those cables had rubbed bare and were going to the Coolant Temp Sensor. I duely tapped up those cables and the car started playing fine although the ecu light would come on after a short time which I assume points to a temperature related issue. I was going to change the Coolant Temp Sensor this weekend but....... now the engine is running high at up to 4000rpm when in nuetral and the ECU light is still on. The third cable the the loom I original found has a spade connector going to the top of another sensor about 2" to the rear of the Coolant Temp Sensor - this connector whilst looking solid, actually "spins" as if designed to do so. Can anyone enlighten me if it should? Im close to cracking this Im sure
Problem Category
Engine, Cooling System & Drivetrain

Gearbox & Clutch

Electrics, ECU, Warnings & Lights

Running Rough, Starting & Power Loss


Solution 1
whittingehame | Legend | Since: Oct 2009 | Posts: 444 | Fixes: 11829 | View Garage
Suggested Solution

Dont know about the sensor you mention but some have a round post (like the head of an nail) which allows the termnial to turn .


Posted on Saturday 14th of December 2013
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Solution 2
Opelman | Driver | Since: Mar 2015 | Posts: 0 | Fixes: 8 | View Garage
Suggested Solution

I had a similar prob. on my Tigra mk1, [1400 cc]; the engine was over-revving [2500 rpm] at idle; I found the prob.to be a trapped tube which I caused when re-placing the upper manifold, after removing & cleaning the EGR valve-the small=bore plastic tube goes to the MAF sensor; repairing & replacing the damaged tube rectified the over-revving & "hunting" problem.


Posted on Tuesday 3rd of March 2015
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Solution 3
Opelman | Driver | Since: Mar 2015 | Posts: 0 | Fixes: 8 | View Garage
Suggested Solution

Re: my last reply- that should have read the "MAP" sensor-not the MAF sensor-it doesn.t have one!


Posted on Thursday 5th of March 2015
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