Hi
Just finished hard part of f22 to H22a in 93 Prelude swap. Added the necessary wires (VPS, VSV, KS, IAB) to H22 ecu using F22 harness with mods and extensions. Coil that came with Osaka engine is internal - F22 was external. On forum advise, splice coil connector black/yellow to yellow.

Engine started on third crank. Ran Great! Turned off, Tried to restart but would not. No spare from distributor.

Voltage checks at distributer with ignition on - power on all wires except Yellow/Green.

No Check engine MIL light. Installed jumper connector to diagnostic plug. Check Engine (MIL) stays on. No fault codes. Removed jumper turned on ignition and disconnectected EGR, MAP sensors - No check engine light until I removed TP sensor.

All fuses good, all grounds good. Performed ECU diagonstic procedures as outlined in Chilton / helms.... "Made it down to replace with known good ECU and try to start..."

Any suggestions anyone?

 

Check your grounding straps.

 

make sure your fuel injectors are grounded via the thermostat housing
does it run on ether?
u said no spark, check the rotor in distributor, otherwise distributor may be shot all together (ive seen it before on internal coil JDM distributors that have been sitting for god knows how long)

~boom

 

Yep, got grounds, new rotor, distributor... Is the black/yellow to yellow splice a valid modification for external coil F22 to Internal H22 distributor valid? Odd it ran at all, but hey the distributor probable sat around for a long time - had a crack cap due to shipping, Heck could have been the hanger queen distributor....