Okay, here is the dealio. My d16y8 swap finally revved to 7K mark when I first put the p28 ecu, right? But now, it won't even go pass 6,5000 RPM. I'd like to get some knowledge about this problem... I really don't know what could be wrong.. I got the right ecu and everything. Vtec cracks loud; however, comes to a halt when it hits 6,500 RPM. My friends 93 d16z6 redlines at 7,200... He's all stock too! Is it because I haven't converted my 5 wire oxygen sensor to a 4 wire oxygen sensor? Any advice is greatly appreciated!

 

The stock redline is 6600 (for auto, for stick I assume the same), as for your ecu changing it I am not sure.

Unless you are over reving it, which is bad, have a stick I assume?

 

https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/threads-must-summarize-technical-problem-title-list-car-details-first-post-2809571/

 

I don't know what the hell is wrong with the car. I mean, vtec cracks but it won't still go pass 6,500 RPM. I mean, it did go to 7K at first, now it's a no, no!

 

Mine is auto and shifts at 7k

 

I think to be exact it is 6800, but when you look at the dash tach you might be hitting the rev limiter.

 

****, now it won't even pass 6K rpm no more, lol. However, that's only when it its cold..

 

usually those problems are distributor related and could be the ignitor shyting out

 

I fixed the problem already and it turns out that my car needed to warm up a little in order for it to hit redline to its potential.

 

Why p28 with Y8? But sound like issue with dizzy

 

Why would you redline cold? Worst idea ever, wait for it to warm up.