Not sure if my Gsr is reving to proper rpm! + CEL is onPlease help

[CTinTEG]

I have a Gsr bubble. It's a dx and had the stock gauge cluster in it. No tach. So I bought one from a junk yard with a tach but it was out of an automatic 4 door. Anyways... I hooked it up and it works fine (so I believe). When I redline my gears to the max, the tach is reading only 7600 rpms. Is that right? Or is my tach not reading proper. I have a 95 usdm Gsr motor with a 99 usdm civic Si tranny. Redlining 3rd gear, I'm doing about 85 86 mph and my tach is at about 7500 7600 rpms. Is my motor really reving higher? I know the Si tranny has really short gears but does 85 mph redlining 3rd sound right with a Gsr motor and a Si trans? Im pretty sure the computer is stock to the motor also. Some one please help. I wanna know if I can get more out of this set up. Also. I have a check engine light on. Anyone know where I can get it scanned really cheap. I need to know asap. Emissions... Please answer all my questions. Thanx :)

[Mr Layy]

first of all, a automatic one isnt read fine in the car, thats prolly why youre throwing a code. get a p28 out of a 5spd civic ex. then your car should run alot better.

[game2o3]

bump, cause i have my cousins stock p28 for sale, if you wanna buy it lmk

[sean-john]

Wtf I always herd auto clusters r fine nd aslong as u got a obd1 p72 ur fine u don't need a p28 nd for the check engine just jump the harness with a wire or something nd learn the codes for the flash bro lol nd the reason why u probly raving out at like 7600 rpm is cause u got a p28

[95minime]

idk im at 7000 at 85 mph

[evo-mentalites-cc]

what ecu are u useing ... also a auto cluster isnt going to fuk with u there all the same except the auto has the p.r.n.d.1. on it

[ej1 sleeper]

what kinda ecu u runnin. cause if its a virgin p28 ur always gonna rev that high bro.

[MYeg'sALLMOTOR]

Yes Chang the ecu and that shit will run good that's a nice setup

[sean-john]

X2 like I said an auto cluster don't matter but yeah what kinda ecu

[doitpropa]

the c.e.l. code could b the reason it wont rev higher

[Mr Layy]

oops i thought he said automatic ecu not tach! my bad

[crzycivic93]

def an ecu issue.......

[crzycivic93]

my shit revved to 8800 when I had it. thanks to that chip, an a lil work.....