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> 1.6 ts rev drop, hesitation
brendonsanya
post 2nd May 2017 10:56
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1.3 8v
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Group: New Member
Posts: 1
Joined: 27th April 2017
Local Time: 25th September 2017 06:12
Member No.: 13,098
Driving: Alfa 145
From: Budapest, Hungary



Please help me, I am lost smile.gif

I have an Alfa 145 1.6 ts 120hp that starts fine but hesitates under light throttle on idle and on the road.
When I try to hold the revs at a specific number - let's say at about 2000 - the revs drop back by 400 for 1-2 seconds then back to 2000.
It is noticeable at idle too, but much smaller drops.
When I am rolling in neutral the revs hang at 1300.
Interestingly, when the revs drop, the engine sounds like a diesel (as if the variator actuated) then when the revs stabilize it sounds petrol again smile.gif

I have changed all 8 spark plugs, coils and cleaned the throttle body.
Disconnected the MAF and checked all injectors (listened to them with a screwdriver) and they are ticking fine.
Cleaned the cam solenoid, tested it and is fine.
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