05-22-2022, 08:41 AM
Cheers Nacho, these are two different idea's;
Idea 1; remove iacv connector ( when the engine has idled normally when switched off so the iacv is in a good position) and insert two 220 ohm resistors as in the picture and leave the iacv disconnected, this will disble the limp mode that you mentioned since the ecu monitors the iacv current and decides it has or has not got a problem and limits the engine to 5000 rpm.
Idea 2; connect two capacitors parallel with the iacv coils, this might hopefully charge ( when the pulse is present ) and release ( when the pulse has stopped ) the capacitor's energy into the iacv ( the pulse appears longer to the iacv ) .
A bit of a trick but i would stick the capacitor's legs right besides the wires to the connector through the " weather pack " which is the silicon rubber seal which stops moisture entering the connector on the wire side.
These seals are generally used by diagnostic techs who insert a test pin or a paper clip beside the wire, the seal will hold the pin in place and the pin will make contact at some point when inserted at the end of travel of the connector, this can also be done with the capacitor leads as a temporary test and go from there.
This second idea is just a theory of me which may or may not work.
The value of the capacitor is arbitrarily ( i just thought this may work ) and you have to observe the polarity of the electrolytic capacitors, again; just an idea.
Good point as i was not clear enough on the second idea, i have not experienced the idle thing personally so i am limited in the things i can suggest, all of this is my best guess and some of it i have verified, like the resistors.
Since it is not always possible for me to know the ability or sense of direction they want to go in of the guys at the other end of the world i just put forward some hints which may work for them and maybe be of assistance to some which are reading the posts, some pick it up some don't that's fine too.
Idea 1; remove iacv connector ( when the engine has idled normally when switched off so the iacv is in a good position) and insert two 220 ohm resistors as in the picture and leave the iacv disconnected, this will disble the limp mode that you mentioned since the ecu monitors the iacv current and decides it has or has not got a problem and limits the engine to 5000 rpm.
Idea 2; connect two capacitors parallel with the iacv coils, this might hopefully charge ( when the pulse is present ) and release ( when the pulse has stopped ) the capacitor's energy into the iacv ( the pulse appears longer to the iacv ) .
A bit of a trick but i would stick the capacitor's legs right besides the wires to the connector through the " weather pack " which is the silicon rubber seal which stops moisture entering the connector on the wire side.
These seals are generally used by diagnostic techs who insert a test pin or a paper clip beside the wire, the seal will hold the pin in place and the pin will make contact at some point when inserted at the end of travel of the connector, this can also be done with the capacitor leads as a temporary test and go from there.
This second idea is just a theory of me which may or may not work.
The value of the capacitor is arbitrarily ( i just thought this may work ) and you have to observe the polarity of the electrolytic capacitors, again; just an idea.
Good point as i was not clear enough on the second idea, i have not experienced the idle thing personally so i am limited in the things i can suggest, all of this is my best guess and some of it i have verified, like the resistors.
Since it is not always possible for me to know the ability or sense of direction they want to go in of the guys at the other end of the world i just put forward some hints which may work for them and maybe be of assistance to some which are reading the posts, some pick it up some don't that's fine too.