Vauxhall Astra engine revving up & down

1997 Vauxhall Astra Problem

Ref#11545
CarVauxhall Astra 1.4 expression
Year1997
Ownermetalman
Posted12/01/2012
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mk3 1.4 cfi single-point injection.
when starting from cold if i dont come to a complete stop to let the engine idle for about 30secs after the engine is warm the revs are high(2000-3000rpm) and sometimes revving up and down. the eml came on then went out again a couple of times, had it read but it showed no faults. the car drive fine it just dose it on idle i have to let it idle for 30secs after its warm before it settles down to normal tick over and then its ok, this all seemed to start after using a fuel injector cleaner. could this of damaged a sensor? was thinking of just getting a s/h carb to see if that would fix it.
any ideas would be much appreciated, thanks
Problem Category
Engine, Cooling System & Drivetrain

Electrics, ECU, Warnings & Lights

Running Rough, Starting & Power Loss


Solution 1
rizzo | Driver | Since: Nov 2009 | Posts: 2 | Fixes: 386 | View Garage
Suggested Solution

check for air, vacuum, breather leaks first and go from there


Posted on Thursday 12th of January 2012
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Solution 2
stewart sutherland | Driver | Since: Jan 2012 | Posts: 0 | Fixes: 3 | View Garage
Suggested Solution

Idol speed control valve needs cleaning. Moooore than likely i had the same problem on my galaxy 2000.


Posted on Friday 13th of January 2012
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