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        General >> Problems >> ignition timing
        
(Message started by: pedropedro on May 19^th, 2006, 5:11pm)

Title: ignition timing
Post by pedropedro on May 19^th, 2006, 5:11pm

engine pinks ...how do you retard the ignition please???
i understand it involves changing a jumper on a connector somewhere

its ok on premium fuel ...was ok prior to head gasket change when head was skimmed so i assume compression is higher

any advice would be appreciated

Title: Re: ignition timing
Post by howiedintheplace on May 19^th, 2006, 10:06pm

Which engine ???

Title: Re: ignition timing
Post by pedropedro on May 19^th, 2006, 10:37pm

it's a 2.3L 16v

Title: Re: ignition timing
Post by martin_rowe on May 20^th, 2006, 8:22am

fixed, sorted out by ECU.

Title: Re: ignition timing
Post by pedropedro on May 20^th, 2006, 8:28am

tks ...i know the ECU adjusts and corrects the timing but when the compression has changed its calculations are wrong

there's a way of changing a resistor linking two wires going from the cpm i believe to retard the adjustment

Title: Re: ignition timing
Post by Octavian_P on May 20^th, 2006, 8:32am

Just leave the battery dissconnected (don't forget the radio code) for a few hours so that the ecu will reset, after that in the first 8 miles (or km) it will "re-learn" the engine functions. You don't need to put resistors or other things.

Title: Re: ignition timing
Post by pedropedro on May 20^th, 2006, 8:37am

thanks very much, you obviously understand this issue
much appreciated

Title: Re: ignition timing
Post by pedropedro on May 20^th, 2006, 8:58am

how long does the battery need be disconnected ? when you say hours... 2 hours?

Title: Re: ignition timing
Post by Octavian_P on May 22^nd, 2006, 11:20am

In general it resets in a few minutes, but to be sure that it losses all the timing, fueling tables, over an hour should be ok, after that the engine will behave un-normally for the first km / miles, until it learns it's functions. You cand eaven help him learn better by, using different driving styles.

Title: Re: ignition timing
Post by pedropedro on May 22^nd, 2006, 11:28am

many thanks...will let you know outcome