I have a d16a6 in my 89 civic hatchback. The problem is, is that the engine will not redline...it gets to about 5500, then sputters, and each gear the RPM gets lower and lower. And when my engine is cold it will only go to 4,000 and then to 3,000 for the othr gears! I changed spark plugs, fuel filter, and i have the right ECU. What else could it be????? SOmeone help me out!!!!

 

u sure its the d16a6? sounds like the HF d15 from the redline.

 

positive it is d16a6...it is SUPPOSE to redline at 6800!...but it wont.....like i said....what is wrong???

 

My d16a6 redlines at 7300rpm according to my VAFC peak hold display. 6800 when its not fully warmed..lower if colder.

 

d15s are 6200 stock fuel kill.
your fpr working? fuel filter clogged full of ****?

 

how do i see if my fpr is workin??? No it is a bran new fuel filter....so i know it isnt that.

 

Do you have a working thermostat in your car? It sounds like the cold rev limiter. What does your temperature guage say?

 

normal.....its not over heating or anything. Could it be the fuel pump? or the injectors??

 

anyone?? does anyone know???

 

have you changed your cap and rotor distrib lately? distrib might be bad too

 

cold rev limiter isnt 3000 ...
its more like 5.

first. is your ECU throwing any codes.?

 

no its not throwin any codes.....its a new dist. so it isnt bad. What else could it be?

 

check the block for the d16a6 stamp. and if your positive its the d16a6 make sure your ECU isn't for a HF


[Modified by 91SIvic, 2:11 AM 1/27/2003]

 

man im positive it is a d16a6! I have an ECU out of a 91 CRX Si...so i know that everything i have is right! I know what kind of engine i have!!

 

dr. nick says: you've got a bad case of NEWB temper.

 

we don't believe you take a picture of the engine stamp....if you can find it

 

man the code is on the tranny...right in the front...come on people......i might be a newb to the site...but i know my car! I just dont know this........that is why i posted here....hoping yall will know.

 

on the tranny eh? ok im gunna trust you. you sound like you know your ****.

 

dont trust him too much...
engine codes are not on the tranny,.. it son the block close to the head and next to the tranny...
on the tranny its the tranny code and serial number, right on front....

u are not redlining,.. redlining makes a weird noise and jerks since it cuts the spark and fuel... seems u dont get enough fuel.. check that the feul pump its giving u enough fuel pressure.... check FPR.. i dont think its a ignition advance isuue... if not the car will not accelerate good at all.. the idle should change if u disconect the vacum line....either that or u got a bad ecu... try checking with another known good ecu....

 

when i hit the gas real hard...it seems to bog down...and jump.......so is that the fuel pump??

 

anyone know????

 

sounds like air to fuel mixture is fucked... so yeah it could be your fuel pump... i would just take it to a certified mech.