K3-VET YRV engine check light code

[endy7527]

Hi alls, my vet got his check light on since lastweek. So i send to shop to diagnose. These code coming out;

P0171 - System too lean A/F lean malfunction

P1513 - Boost Pressure Malfunction

Hd anyone else ever got this problems? How la to solve it?

 

[DJgErM]

1) AF lean can be caused by multiple items :
-o2 sensor
-injector
-ecu problem itself

2) boost pressure malfunction
-check ur internal wastegate/actuator
-whether ur vacuum hose and boost pressure hose are plugged in correctly...
-vacuum and boost sensor (the 3 small square boxes on ur rocker cover...2 black one maroon/red)

 

[endy7527]

wow...good info man...

i'll check it n info back!

 

[DJgErM]

simplify the problem and solve it one by one...cheers

 

[endy7527]

Is this the boost pressure sensor?

http://tapatalk.com/mu/74c50410-8e1a-01c0.jpg

See the T join is for boost meter..Can i juz spray some wd40 inside..maybe some stuff stuck inside..huuu...

 

[DJgErM]

nope...it does not work that way..

 

[endy7527]

1 thing also i wud like to ask... Whenever i boosting, when it reach 0.7-0.8 bar, the boost will like retard n unstable, the rev also like 'semput' for a while until it reach 0.9 bar.. On 0.9 everthing went smooth as usual.. Why its like dat aa? Could it be the sensor problems? Or the actuator..this problem occur since i had this engine.. Is it normal or not yea?

 

[DJgErM]

cant determine the rev unstable definition...but usually boosting will have minor spikes...like unstable...but maybe check ur internal actuator...usually it should be minor...maybe we can meet up someday..and u can illustrate the problem..

 

[endy7527]

Sure..it's hard to describe by words..huhu where n when we can meet up ehh?

 

[endy7527]

Hi...where can i get the o2 sensor for yrv eh?? Can i get a new one..any car use sensor similar to yrv? Hehe

 

[endy7527]

Update! Today i decided 2 ask my fren 2 test my sensor on his car, seems my sensor working good.. Last try, Reset all- disconnect -ve terminal of the batery, switch on the headlamp for 30nd n connect it back.. Start up the engine, YESS PROBLEMO SOLVED!! no more check engine light.. Hehe.. Now only the boost pressure problem left.. Thanks all...