94 lx, with obd1 jdm vtec d15b with stock p28
i have a 5k rpm rev limit...wth? any ideas

 

only thing I can say is to test it out by swapping ecus.. try to find someone else who has a p28 and test it out

 

i also tried a p06..same

 

hrmmmm... any CELS?

 

^^x2

 

Is it a rev limit or misfire/bogging at 5k rpm? Have you inspected the ignition system components and checked the fuel pressure and ignition timing?

 

i had this problem when i had a bad dizzy

 

it was running perfect in another car. it ran perfect in this car. so thumper says. i beleive him. but not i does this. its not bogging down. it sounds like 2step when i hit 5k.
the distributer looks good. the rotor looks new. timing is dead on.
so try another dizzy?

 

Is the 5k effect seen both when revving at idle and when driving?

 

yes.

 

Check your connections at the throttle body. I forgot what sensors they are but they have identical fittings and can be switched around causing many problems.

 

ok il check but i dont have any cel now that i fixed a random wire touching ground.
if the tps and map is backwards wont it through a code?

 

What voltages do you measure at the TPS with the throttle fully closed and fully open?

You might also want to measure the resistance of the Crank sensor in the distributor.

What's the fuel pressure with and without the FPR vacuum hose connected?

How old are the coil and igniter unit in the distributor? Get them tested.

 

il do that after i get off this hamster wheel.(work)

 

Yeah this can definately be the culprit. Check wiring for good connections and make sure the screw that holds the rotor in didn't back out and FUBAR the innards of the distributor.

 

i tried a dizzy from a d15b7..doent even fit the bolt holes.
i tried another p28...and got a cel for 22 vtec
i fixed the vtec pressr swtch ground and they are wired correctly to the ecu.
the p28 i have is intermittent with the code 22. very gay
what distributers will fit a d15b? d16 ones?