throttle response - gummy injectors ? + harry's garage video

I'm replacing my steel injectors with brass ones as part of my fuel distributor rebuild. I'll let you know if my throttle response improves. A quick fix could just be to buy some techron fuel additive and use it for your next couple tankfuls and see if things improve.

 

? ? ?

under "italian tune up" we understand here in germany that some italian mechanics go around the car several times, make "testdrive if the rpm limiter will work when engine is cold" and then write a big invoice

 

Injector servicing is not part of a major tune-up though a test drive is. If you drop it off and don't mention your injectors they won't be addressed up front and would (hopefully) be noticed on the post-service test drive--some shops may not drive enough to notice at all. Caught at the tail-end would amount to more time and not as easy to service when the motor is out (perhaps more $). Tell them before they start the teardown. As mentioned if you have the original steel injectors you may want to consider swapping them all to brass--expect to pay anywhere from ~$40 + a piece (internet pricing, plus O-rings), the dealer will want to buy the Bosch injectors from Ferrari at a pretty steep markup. Or have them do a flow test per the WSM or send them off to be flow tested/cleaned.

Let us know how it works out.

 

CIS injector nozzles were really designed to be cheap disposable parts much like spark plugs and replaced in much the same fashion. Like spark plugs they have gotten to be much more expensive but unlike spark plugs they are very affected by age.

If suspected of problems or known to be old I would just replace them. I have 2 of the Bosch testers for them and very seldom use them. The time required is wasted considering the cost of injectors unless it is part of a diagnosis.

 

Hahah! Ausgezeichnet.