Very light throttle jerking - Alfa Romeo Forum
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(Post Link) post #1 of 8 Old 11-04-17 Thread Starter
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Very light throttle jerking

Guys
My 2.0ts 145 cloverleaf has developed a strange jerking reaction when under a very light throttle at about 2 to 3krpm or sometimes noticed under a closed throttle slowing down. A most like your dabbing throttle a tiny bit?
Any ideas where to start looking.
A couple of times lately the injector light on dash appeared and car sat at 1200rpm but turn off ignition and on again it clears. Only done this about 3 times in last 2 weeks and 300 miles of driving.
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clean the throttle valve out, some gunk there most likely which prevents smooth operation.
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(Post Link) post #3 of 8 Old 11-04-17 Thread Starter
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Thanks mate. I've have a look at this valve and see how it goes from there.
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Inspect the flexible inlet pipes for damage. You may need to take them off the engine and flex them to see.

How many miles on the engine?
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(Post Link) post #5 of 8 Old 13-04-17 Thread Starter
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106k but no history
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Originally Posted by purplebug View Post
106k but no history
Probably about time to service the injectors then. Injector cleaner won't do anything, replace the little filters in each injector then run a bottle of cleaner through the system to clean the nozzles.
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Injector cleaner works most of the time however cleaning them in a machine is better/more accurate and longer lasting
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Try a throttle reset ... "The 90 second trick"
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