vy spac engine light issues

[scott216]

hey just looking for abit of help.
my friend owns a vy spac manual
the check engine light comes on only while in motion.
when comming to a stop it goes away.
ive replaced 02 sensors temp sensor and maf sensor an still the engine light is there
just need some help thanks guys

 

[PlenumBiscuit]

clean battery terminals even put new ones on it

change fuel filter

check all plugs are on properly everywhere

check vaccum hoses u may have a small leak

 

[Fu Manchu]

hey just looking for abit of help.
my friend owns a vy spac manual
the check engine light comes on only while in motion.
when comming to a stop it goes away.
ive replaced 02 sensors temp sensor and maf sensor an still the engine light is there
just need some help thanks guys

First things first. Avoid randomly changing parts. You need to get a compatible diagnostic tool onto the car to see what codes are being generated. From there you’ll have somewhere to go.

If you haven't cleared the codes after your changes, the light will continue to illuminate until the ECU data is enough to support not logging the code. It’s a lot of start cycles.

Also, the codes don’t tell you which bit to fix. It provides data to help start looking for the culprit.