Or if you still have a stock or Stage 1 computer you could reinstall that since it will work with the S2 injectors. It'll run a little richer but the injectors are only about 18% bigger than stock and the computer will be able to adapt and pull that excess fuel out using the long-term fuel trims. If you wanted to play it really safe after doing that you could also turn the boost down using the S2 WGA adjustment or run a new vacuum line directly from the intake manifold or the compressor outlet to the WGA which would limit you to minimum attainable boost (i.e. WGA spring tension or about 7-8 psi on a S2 WGA set to 4mm pre-load).
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Eric H. - '04 Neon SRT-4 (eBlue/S2)
'92 Dodge Daytona IROC R/T - '91 Dodge Spirit R/T
'89 Caravan SE Turbo - '08 Cobalt SS Turbo
'04 SVT Focus (EAP ZX3) - '02 SVT Focus (Vortech)
'81 & '85 Chevy Citation X-11 - '93 Olds Achieva SCX W41
plus a couple other turbo Dodges, a turbo GM, and a bunch of other stuff...

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