Hi friends, today I did some tests, I put a logical tip on the line of the vvt en the ecu conector and I went to try the car on the street, Nothing happened, the logic led did not turn on at any time, I read codes and mark code 33, it refers to cold start. Will that affect the performance of vvt? Th...

Jeonsah wrote:I have a blacktop 20v 4age and there really isnt that big of a difference when it kicks in. The engine revs slightly faster.. thats about it.

Maybe that is the reason why I dont feel the vvt jejejejeje, thanks for your answer bro!

... but i still do not feel when vvt works,. I never owned a 20V so I can't help with how it feels when VVT activates. With the BT the vvt can activate early or late or anywhere in between depending on a combination of engine temp, rpm and load. So it is not like a switch that always happens at a c...

Today I conect the speed sensor wire from the cluster to the ecu but i still do not feel when vvt works,.

I dont know how to send pictures here,

Hi guys, i finally check the ecu internals, all looks Perfect.

Thanks my friends, this weekend I'm going to open the ecu and check the capacitors and transistor's, your answer Realy help me, thank you very much. This weekend I'm gona write about how is the ecu internals

Also my car is not a GTS, Its a SR5

To quickly see if the solenoid is working, you can connect 12V to one terminal and ground the other while at idle. If the engine changes rpm and maybe also roughness, then the solenoid at least is working. As for the ECU, you need to take the cover off and look to see if the transistor in the cente...

Hi my friends, i have an ae86 with 20v silver top (black top ecu and all bt electric parts) but i dont know if vvt is working. Can any person help me? I dont know if is necesary the speed sensor to run vvt. I check the vvt sensor and its ok, the wire signal and positive are ok too. I hope any can he...