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Wire your stock ECU plug to an aftermarket ECU.

Pick your car and the ECU you're fitting. Pinswap maps every factory pin to the new ECU, checks the wiring and draws the harness. Every pin comes from a manual or a measurement, never a guess.

Covers 10 vehicles and 51 aftermarket ECUs, with 227 harnesses built so far.

Harnesses

Every car against every ECU. A built harness shows its errors and warnings from the wiring checks and its wire count. An empty cell shows the fit check: the ECU's documented specs against what the stock ECU drives. Anything the ECU's documents don't confirm counts as unconfirmed, never as a yes.

No findingsWarnings onlyErrors to fix
AP1 2000–03 (F20C)
Fit check for 1 other ECUs
  • Holley Terminator X MAXNot suitable
    Sold only as V8 engine kits (LS, Hemi, Ford) with fixed trigger patterns; no Subaru, Honda or Mazda support found
AP2 2004–05 (F22C1, cable)
Fit check for 1 other ECUs
  • Holley Terminator X MAXNot suitable
    Sold only as V8 engine kits (LS, Hemi, Ford) with fixed trigger patterns; no Subaru, Honda or Mazda support found
AP2 2006–09 (F22C1, DBW)
Fit check for 1 other ECUs
  • Holley Terminator X MAXNot suitable
    Sold only as V8 engine kits (LS, Hemi, Ford) with fixed trigger patterns; no Subaru, Honda or Mazda support found
AP2 2006–09 converted to cable throttle
Fit check for 1 other ECUs
  • Holley Terminator X MAXNot suitable
    Sold only as V8 engine kits (LS, Hemi, Ford) with fixed trigger patterns; no Subaru, Honda or Mazda support found
MX-5 Miata NA6 1990-93 (B6-ZE, 1.6)
Fit check for 1 other ECUs
  • Holley Terminator X MAXNot suitable
    Sold only as V8 engine kits (LS, Hemi, Ford) with fixed trigger patterns; no Subaru, Honda or Mazda support found
MX-5 Miata NA8 1994-97 (BP-ZE, 1.8)
Fit check for 1 other ECUs
  • Holley Terminator X MAXNot suitable
    Sold only as V8 engine kits (LS, Hemi, Ford) with fixed trigger patterns; no Subaru, Honda or Mazda support found
MX-5 Miata NB1 1999-00 (BP-4W)
Fit check for 1 other ECUs
  • Holley Terminator X MAXNot suitable
    Sold only as V8 engine kits (LS, Hemi, Ford) with fixed trigger patterns; no Subaru, Honda or Mazda support found
MX-5 Miata NB2 2001-05 (BP-Z3, VVT)
Fit check for 1 other ECUs
  • Holley Terminator X MAXNot suitable
    No cam control; this engine needs variable cam timing
RSX Type-S 2002-04 (K20A2)
Fit check for 1 other ECUs
  • Holley Terminator X MAXNot suitable
    No cam control; this engine needs variable cam timing
RSX Type-S 2005-06 (K20Z1)
Fit check for 1 other ECUs
  • Holley Terminator X MAXNot suitable
    No cam control; this engine needs variable cam timing

Sub-harnesses

Smaller looms that plug into a main harness: power, wideband, chassis adapters.

4 test harnesses hidden. Show test harnesses