Franzwazwaz92

It's a 1992 honda prelude with a swap h22a vtec my problem is on the manifold the vacuum lines are all cut and open witch ones do I plug witch ones do I leave open the egr is deleted same with p/s and a lot more it is just motor the battery is in the trunk there is wires hanging all over the place around the motor and in the inside of the car I don't no were to start with this thing I will post pics soon and I was told it was tuned for a turbo but dose not have one and he said the p13 ecu was chipped for a turbo so I went n got a p28 outa a 95 civic si the motor was a b16 or b18 vtec 5 speed after I put the new ecu in it drove a lot better but it went back to driving. Like **** I plugged in a sensor and the cel was of n then we plugged all the vacuum lines it has been driving ok some times but it always go's back to driving like **** horrible shaking like I can't even drive it just push in the clutch and rev it up n let it n some times it will be fine pleas help thanks

mokhkw

Where to start....

95 Civic is OBD1 BUT if it's plated as 1995 it could be a 1996 model which is OBD2. That would make your p28 OBD2 if it came from the same car.

H22a Vtec - need more info as there are several models of the H22 & some were in OBD1 preludes while some were in OBD2 preludes. Check the block for the stamp as that may help us work out what injectors it is running.

Honda H Engine - Wikipedia, the free encyclopedia

OBD1 prelude injectors are peak & hold and require a resister box. It's a small box which looks a bit like a gaming desktop heat-sink (finned aluminium) & is found near your firewall on the left hand side.

OBD2 prelude injectors are saturated and don't require a resister box.

Flow wise the OBD1 vtec injectors are 345cc/min while the OBD2 vtec injectors are 295cc/min.

If you are running a OBD2 ecu or injectors on a OBD1 Prelude ( which is what the 92 Prelude is) then you will run into problems similar to what you described.

Is the manifold stock or is it a leftover from the turbo build? Running a turbo manifold on a non-turbo car isn't something you want to do.

Franzwazwaz92

The ecu has 95 civic si on it and came out of a 94 civic I checked the check engine light and it was a iacv and o2 and it's been running ok some times I can finally go 30 mph steady and not be jerking all to hell do you think I should try the p13 ecu and see how it runs ? But it's chipped for turbo ? And it has a 92 stamped on the block so I'm guessing it's a 92 h22a vtec I can barley read the numbers below the h22a

holmesnmanny

U really have a mess on your hands..

You cant chip a p13 so put that in and see if it runs and check for codes.

Franzwazwaz92

Ya I would say well it says p13 tur on the ecu I will try it and let you no

Franzwazwaz92

It's running a lot better the map sensor was in the wrong spot and I plugged all vac lines thanks everyone