92 jdm h22 in a 93 accord auto to manual swap
OBD1 P72 with hondata s200 using a GM 2 bar Map sensor

Issues
Car redlines at 4,500

Other than that it starts up, idles fine when cold (1500rpm) and warmed up (875rpm) NO CEL. The light works and threw a VSS code simply because the speed sensor clip had an ear preventing them from connecting.

I got the car in its current condition
I took care of a balance shaft oil leak and the lead wire from the external coil was arching on the radiator hose.

I have been searching "redlines at 4500. Below is what I am considering checking out before the end of the week

VSS issue - auto to manual swap with original automatic guage cluster (always in P) could be conflicting? Is there a diff between manual and auto speed sensors?

ECU issue - I was told by former owner that its running a base map and/or its not tuned. I dont know. I do know its running fine with that GM map sensor so at least someone was able to select that GM sensor over the OEM sensor on a computer at one point. Only an assumption.

Ignitor issue - unlubricated ignitor contacts can cause this

Distributor - could I have the wrong one?

Thanks a million!


Any guidance past this would really help.
In the meantime I would like to source a stock ecu and wire up the OEM sensor. Im gonna unplug VSS and see if that remedies. Im also going to unplug the Apexi Controller and see if that helps.

Again no codes and the car runs fine. Im in Boston so I rarely have a chance to go above 4500. I just wired up vtec but alas still wont go oast 4500.

 

Lets take a step back for a second.

Was the car always running terrible when you bought it?

What is the permanent hiding?

 

You have a lot going on with this car with a swap and I still don't know what ECU you are using.

Make sure the timing belt is properly aligned between the crank and the cam pulleys. You also should check for engine codes.

 

The blank space under the J1 jumper and the p72 designations lead me to believe that its s obd1 GSR p72

Im pretty knowledgable so feel free to not hold back any complex information or troubleshooting directions.

 

The 37820-p72-a01 ECU is from a 94-95 Acura Integra GSR Manual Transmission.

Can you tell us the engine code stamped on the engine, like H22A1, or B18C1, etc..

 

I have done that before

It has H22A no numbers so JDM
P13 designations on both head and block
The casting stamps on the block says NOV 91
Is this one of the earliest H22A like the donor car was a1992 jdm prelude?

Also I believe I wired up vtec today. Got the 12v to the solenoid wired up to the correct ecu pin and the 2 wires for the pressure switch ground and signal. No change at all the the cars behavior. The car bogs when shaking the Apexi controller harness. It doesnt happen while driving ir randomly. I have to move and play aroud with the harness under passenger side for it to do that. Again I got the car like this. Im going to fix that but its not a priority.
Also the controller is not setup at all and without vtec why bother.. i get it to read speed and rpm thats aboutut for now

The previous owner had turbo dreams that explains the apexi boost controller and the 30 psi GM MAP sensor. Other than that its a typical I/H/E with AEM fuel rail injectors unknown they have blue color on them. Mated to a M2F4 Tranny.

 

I may have found the issue.
I have a distributor with an external coil bolted to the tranny. There is no sensor by the crank pulley. Meaning there is no crank shaft sensor wired up? I have no code as well because the car did not have a crank angle connector in the harness to begin with in its F22 days
Can this externally mounted ignition coil setup have a crank sensor inside? Is it one or the other or can you have a jdm distributor wired up with an external coil

 

Older accords had the crank angle sensor in the distributor.

 

So the harness has a plug connector for a cranksensor in my cb7 and i may nees to simply wire that up to the internal crank sensor in the distibutor.

Shouldnt i be throwing a code for crank angle sensor?
Again i have no codes. CEL works and i jumped it when it threw the VSS code.

Or


Does a crank angle sensor need to be wired up and go bad to throw a CEL. From my experience simply unplugging a sensor will throw a CEL. So if I dont have it wired up it should throw a check engine light. But um if there is no CEL than it is wired up and its not my problem. I will have the ditributor cap off and pictured so maybe we can identify the dizzy.

 

This is complicated, because you have a Prelude engine with an Acura ECU.

Do you have a scanner that can read sensors?