Recenty installed a Aem 1052 on my 2000 s2k its runs very smooth with no problems. Last week i decided 2 do a nitrous install. Now my tuners are having issue with the nitrous control maps switching back 2 the main maps.

nitrous is switch on via a toggle switch with ground connected to LS9. We used available switch 3 for the 12v input. once the switch is switch on and all the parameters are met we can here the nitrous soleniod clicking. Every thing seems 2 be working fine till that piont. When switching the toggle switch off which is suppose 2 de-activate the nitrous control function but it doesn't the nitrous maps stay on.

Pinouts are - LS9 = A22
Sw3 = d10

Any help will be appreciated

Thanks
Morne