do NOT run a p30 or p72 on an h22 unless its been chipped and has a custom program on it.
Not only do h22's have different sized injectors than the b18 and b16, the fuel maps are very wrong for it.
If you are throwing a code, fix your code first. There is 0 use in diagnossing a rev limit problem while you have codes showing.
ELD is wiried into the distributor wiring harness and has nothing to do with automatics, if that was the implied reference.
trace it down and make sure its wired in correctly.