Hey guys, i've tried to search but couldn't really find what i wanted.

I've recently swapped over D16a8's from a 91-91 crx.
The car when i take off is very sluggish between 500-2000rpm as if it isn't getting any fuel or like it's not revving. Even when i step on the pedal it doesn't go anywhere.

Someone suggested fuel filter? someone else said injectors? I've checked either of these BUT compression is good, replaced plugs etc blah blah blah...... Also not sure if i've got my plug leads in the right order.

Any information would be greatly appreciated.... newbie q i know so i apologise

 

whats your timing set at?

 

Sounds like your ignition/mechanical timing is off.

 

Yea my dohc zc was doing that it's hard to get the mechanical timing prefect.

 

ahhh damnit! I've just had everything changed over too, new timing belt etc.
I'll have to go to another workshop i think.
It's revving really low too. On idle it's at around 200-300rpms

 

Did you convert from the DPFI to MPFI? or is your car already MPFI

 

car was already MPFI..
I think it might have been bad fuel too....

 

Muthaf*ckin car is still doing the same thing Grrrrr!!!!

Anyone else know what it could be?

Please help

 

what have you checked? What have you done/remplaced?

Start with a complete tune-up i.e. rotor/cap/fuel filter/plugs/wires/pcv
then check igntion timing with timing light and see if it's off.

If all is right remove the injectors and send them for cleaning, check your TPS reading on the tb, clean out IACV and reset idle correctly, check for vacuum leaks with some kind of fluid (carb cleaner, wd-40 etc) around the tb, iacv, intake manifold. Check your map sensor or swap it with a known good one. By then if all is right I would send it to a reputable shop.

 

Maybe check and see if the catalytic converter is plugged up?


Posted from Honda-tech.com App for Android

 

i've had the timing checked, all vacuum lines checked, map sensor is good. Cat i haven't checked. I'll have to take it to a shop. I might just change the fuel filter on the weekend too just to make sure incase it's something that small.

Thanks for the replies guys

 

um in your first post you said you dont know if your plugs are in the right order... THIS is what i would check first. its very easy just use google. if you arent firing on a cylinder it will run very rough.

 

"Had your timing checked?" What did they do? Heck your mechanical timing, ignition timing, or both?

 

check the timing yourself to make sure, incredibly easy, pull the plug beside the cam and sit something small that cant fall all the way in into the hole (I use a samll but long screw driver) careful not to bind it, and rotate the crank by hand till it reaches top dead center. and look at the gears. check the dist and see if its fully turned one way or close to the middle.

firing order is like follows

(dist)4-3-2-1-(cams)
dist should go 1-3-4-2

3
1 4
2

(sorry if that's confusing, too lazy to find a picture at the moment, I am a Honda guy after all)

being sluggish but still running indicated mechanical timing, and being a dohc its not fun to set if your not experienced with them so if a show did it its likely it might be off a tooth,

are you sure its a d16a8? because that engine comes from
1988–1995 Civic/CRX/Concerto (UK/Europe/Australia)
1992–1995 Rover 216/416 GTi (UK/Europe)
1993–1997 Rover 216 Sport Coupé (Europe)





found you a pic, should be the same granted its on a z6, if your dist dont sit as far sideways just base it off the flat side

 

theres a air valve at the top of the throttle body,adjust that to make it match with the timing,just play with it,get it to the right idle RPM and see how it does,i had the same problem,you lose soo much power from this.

 

Yeah it's a D16a8... I'm in Brisbane, Australia
I'll have another play with it tonight and see what i can do solo. The mechanic i took it to i guess didn't know what he was doing.

 

not sure about aust. but around here I do not trust mechanics when it comes to these old Honda's. if a computer cant tell them whats wrong they don't know.

if you feel confident you can use a long screw driver and set the car TDC, and check the cams. there should be a little hole in the top of both cams were you can put a pin to hold the cams while the belt is set. if the hole's are way off its off timing or it the cams are obviously turned away its out. the dizzy tend to easy to set.

will the car rev up fine? rev slow or fast? stop before the rev limit?

 

spark plug wire order for the D16A8, D16A9, D16Z5 and DOHC ZC is like this:



do you have any codes showing on the ECU?

sounds to me like the camshaft timing may be incorrect

 

one good thing about the dohc is they do throw a cel code if the cams are out of sync. (atleast a true zc with a usdm teggy ecu does)

 

It could be your ECU. What ECU are you using?>

 

This is the next thing i would check before spending money on anything else.

Where abouts in brisbane are you?