tuning problem ?
09-25-2016, 07:45 PM
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tuning problem ? hi guys i got my pcm flash by a local guys here im canada .
specs are a truck engine 6L 2003 with a 2005 4.8L truck engine pcm and Harness the truck was drive my cable and old style cam crank sensor .
im looking at a 80% engine load at idle and 23g/sec MAF its reading 18ish Inhg of vacuum but on my gauge ( hand held ) im getting max 10 inhg of vacccum when the engine is surging because of too much gas ... if i test my map sensor ( ls1 style ) with key on engine running it varie the way it should . i checked for vaccuum leaks and didnt find any i blocked all vaccum ports too. ALso an other problem i have is that if i touch the throttle the car goes up in rpm but i dont control it ... it does this trouble seen i took the pan off for a bad strainer ORING. i didnt remove the intake on that job...
i have screen shots of the freeze frames of my scanner . it is coding MAP sensors out of range and and other one of the map .... i dont have a good used sensors to test with
specs are a truck engine 6L 2003 with a 2005 4.8L truck engine pcm and Harness the truck was drive my cable and old style cam crank sensor .
im looking at a 80% engine load at idle and 23g/sec MAF its reading 18ish Inhg of vacuum but on my gauge ( hand held ) im getting max 10 inhg of vacccum when the engine is surging because of too much gas ... if i test my map sensor ( ls1 style ) with key on engine running it varie the way it should . i checked for vaccuum leaks and didnt find any i blocked all vaccum ports too. ALso an other problem i have is that if i touch the throttle the car goes up in rpm but i dont control it ... it does this trouble seen i took the pan off for a bad strainer ORING. i didnt remove the intake on that job...
i have screen shots of the freeze frames of my scanner . it is coding MAP sensors out of range and and other one of the map .... i dont have a good used sensors to test with
