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2004 buick rendevous wont comeplete drive cycle over 120
2004 buick rendevous wont comeplete drive cycle over 120 miles all kinds driving freeway stop and go
I am sorry for the long wait
which drive cycle is not running ? or which monitor is not running ?
catalyst, heated o2, an evap
all of those will not run ?
and there are NO codes set in the computer ?
was was the system set to start the drive cycles ?
does the fuel gauge work correctly ?
yes cleared codes because of po131 also LT fuel trim -18 and higher all o2s reading WITH IN RANGE HAD UPSTREAM O2 CHANGED 2 MONTHS AGO sorry for the caps
no problem at all
disconnect both battery cables for 5 minutes then touch the 2 battery cables together for 2 minutes then reconnect both battery cables to the battery this will force the engines computer into a full reset and should reset all the monitors and then drive the van they should all run and either pass or fail within 75 miles and also make sure the fuel tank is up @ 3/4 when you start the driving
usually this will get them all to run
with no codes this usually does the trick
po131 just came on in 140 miles
ok so now it has a code 131 ?
any access to a scan tool to see live data ?
how does it run ?
any vacuum leaks ?
only thing i didnt like was long trem fuel was at -18 and higher butter fly was filthy cleaned it that then it ran great
when driving this under the conditions the light triggers what is the O2 MV reading ?
0 to .8
lets see if another expert has any ideas
hang on another expert will reply back to you