ok have a z6 block w d15z1 head its hitting rev limiter at 4500 rpms cant figure out the problem any help is appreciated thanks

 

How long have you had the engine set up....was it doing this before? Any CEL?

 

What ecu?

 

had it for like 4 yrs and its always done it but never cared. but my buddy brought his car over and we swapped his vtec sylonoid dizzy and ecu and still had the same problem. beginning to wonder if the timing is off.

 

tried po7 and p28

 

So any cels?

 

**EDIT** cancel what i said... i learned to read. LOL

 

its your distributor.. needs a new one

 

said he already swapped dizzy's

 

yea already swapped dizzys and checked timing and iys perfect

 

I'm in to see if one of these rev limit problems ever really gets solved. Apart from plugs getting switched I haven't seen it yet. And it's almost ALWAYS having to do with a swap of some kind.

 

ANY CHECK ENGINE LIGHT???

 

yea but i changed everything it was reading and no fix

 

I took the top end out of a 92 d15z1 eg hatch then I took the bottom end out of a 95 d16z6 out of a ex coupe, everything fit together besides the cam gear, got to use the d16z6 cam gear on the d15z1 head, I can rev it to like 6,500-7k and run just fine, I got the p28 non chipped ecu, it's got 4,000 miles on the build