weird prob after manifold swap - Honda Prelude Forum

presidentpoo · 05-12-2011, 01:40 PM

Need some help guys. I have a 92 prelude with a f22 in it. I just completed the h23 manifold swap and the car is running great...except the car wont rev past 5k rpm. Its like it hits a wall like a rev limiter kinda but it never happened before. I'm thinking maybe the tps needs calibrating. The oil pressure light is on so could oil pressure cause this? Any thoughts or suggestions? I know I'm gonnabe changing my oil pressure sensor and my coolant temp sensor as their is a code for the coolant temp and it looks as if my oil leak is coming from the pressure sensor.

presidentpoo · 05-23-2011, 10:56 AM

No one?

chris89 · 08-21-2011, 08:20 PM

So what have you found out? I could help you diagnose it.

thanks

minilogoguy18 · 08-22-2011, 06:49 AM

Running a car with the oil light on is retarded, you're just asking for it. You should head over to an Accord forum, this mod seems popular with them since they like to mod that engine. Prelude owners only want that engine to boost, N/A it sucks cause it can't move the heavy Prelude.

94ludeSaud · 08-25-2011, 06:50 PM

idk if this is useful or not but i did a swap on my f22a1 for a f22b1 vtec, the new motor runs perfect but wont rev past 5k either but its because my vtec isnt connected yet. maybe could be something similar?

chris89 · 08-25-2011, 10:11 PM

I've seen something similar but it was because of a faulty VSS (Vehicle Speed Sensor). You probably missed some plugs or plugged incorrect plugs into incorrect components and jinxed the ecu out. Otherwise it very well could be you didn't connect the ground to the back side of the manifold or your leaking from the head to the manifold or at either the bottom of the IAB plate or the top IAB plate. It could also be a leak between the throttle body and the manifold or a vaccum line not connected. My question to you is how is the idle? If it doesn't rev up and down continuously then it may not be a leak since usually the Idle air control valve will fault out when there's an intake leak. Take some pics! I'm interested to see how that manifold looks and runs on the f22. Later.