Could someone please help me with my engine :(
 

okay, i put a d16z6 in my coupe, should have been a fairly simple enough swap right, well rite now i am having a major problem. Once it starts reving past 3000 rpm it becomes very boggy and wont really go any higher then 4000 rpm, does anyone know what could be causing this? I just got rid of all my cel codes... So i dunno what is left to do.:mad:

SOMEONE PLEASE HELP ME:cry:

oh yeah, its a 93 d16z6 in a 93 civic dx coupe

u shoulda let somebody that knows what they are doing install that ish...its damn plug and play man, hook up the vtec and u should be golden...maybe ur timing is off or somethin

Sounds like your ECU is in limp mode..you sure your not getting any codes?

It could also be a fuel starvation problem, check your fuel pressure.

yea guy i thaugh u were an expert :) o il do this 4 ya hahahaha


yea the vtec should be kicking in then and i just had a simular probem but my engin light came on wen my ecu was in limp mode


id get 2 the point were the vtec should kick in and it would make the same noise as the rev limitor wooov woov woov and just wilnot let u get any higher :)

try geting it scanned or swap the ecu out try that it should be giveing u acode and its not


wel thats what i have lurned from my resent problem


mide was the timeing and the bolts were loose so as soon as the motor got reving high i was loosing spark in 2 pistons :) so i just moved it alittle and tightened it all up and boom all good :)


i have a fuel filter if u need one $40

why would i pay someone else like 700 bux to install it when i can do it myself? Sorry but i dont have that kinda money to be throwing away, i just need soime help getting my car running 100%

my ecu isnt in limp mode, thats the thing, if i press my pedal very sl;owly i can get it to reach like 5000 rpm, it doesnt feel like a rev limiter at all.. Also, how can i check my fuel pressure? i switched to a holley 190 gph fuel pump and a new aem fuel filter. :umbrella:

cuz then ur **** would work and u wouldnt complain about not having a car to drive...but then again, nobody wants to see the snot green machine on the road:cheers:

you dont win friends with 1.6 L

u ever see the car in person? no.... so shut the hell up:upyours:

hows the timing? is that set right ont he new engine?

that's not true :cry: :hide:

are you sure the enigne is good??, timing wouldnt cause that problem

back to basic like check the dist. timihg, cam and crank timing.

shoulda just had scott newman do the install for ya kieran:P. Best thing to is just start checking the basics. U have a manual, start using it.

yeah yeah yeah, but asking for help on tcc isnt the wrong thing to do... Why research if i can get help on tcc? and i am gonna check the timing today

well u should research before u start asking questions. Im sure u will figure it out, just do some searches around the NET and im sure u will find the answer to ur problem.

So no codes? Is the ECU a stock P28?

Are you saying that if you floor the throttle, the engine only gets up to 4000 rpm? Does react just like if you were bouncing off the rev limiter, or ...?

This Engine you installed, did you get it complete and just throw it in, or did you change anything before putting it in?

i had codes but got rid of them all. It does not feel like a rev limiter at all becasue if i press the pedal slowly it will reach up to 5000.

this engine was just the engine pretty much, i used my old d16z6 and swapped the tranny, dizzy, and a few of the sensors from my old engine.

oh yeah and the wiring harness and throttle body

maybe this engine has like uber low compression or something drastic

did you install your fuel pump and filter correctly..??? didn't you have problems with your fuel pump?....tps set to range..? get your volt meter and check the tps...then check your vtec wiring/all wiring...then check your fuel pressure...then when all else fails take it to a mechanic.

check fuel pressure... my b16 civic did the same then i needed a new fuel pump to make the car go... pedal down @ 90km it would NOT speed up at all... fuel demands

-Matt

'sup!!

Yeap; D16Z6 swap is as EASY as it gets; you know it dropps right in; and all you have to do is add the VTEC (oil press. and sol.) to the P28 in your DX.

Hey man **PROPS** for swapping it in yourself!!!!!!!!!!

Anyways.... HOLEY ****!! 190 ghp fuel pump?!??! (dooood; sweet pump; but OVERKILLL for D16Z6......)

You realllllly need to check fule pressure (you need a fuel pressure gauge; B&M? mounts on the fuel filter) and an adjustable fuel pressure regulator; stock is 42psi; my old D16Z6 made peak hp @ 46psi on dyno....)

Anyways; personally I think you're running WAYYYYY too rich w/a KILLER fuel pump; swap in a stock pump or GS-R/Itr for more flow.. but anything more I think you're just dumping wayyy too much fuel into the D16Z6.

later!

btw; also how was it before the swap? Any similaor problems?

here's a *possible* issue;

I've had cars with plugged catalytic converters have the same issues; either the cat's come appart and/or are plugged and because they block the exhaust the engine can't rev up;

(Imagine running at full tilt and trying to breathe out a straw instead of your mouth)

oh one last thing; any chance (inhell) you crossed the MAP and TPS connectors?

Those are the only *2* that can be swapped; and can fit either way.

teh reason im using the holley 190 lph (said gph by ac cident there) is because i am going turbo as soon as i can get the car running properly, also, i bought the car as a shell and its had no motor in it for like 2 years. I checked the tps and map sensors earlier today and theya re in the correct spots :(

dont u live on the south side of town by the lake? think ive seen u out there working on it before....:thumbup:

yup dats me

vacuum leak maybe....around the throttle body...I mean you should have just stright swapped it then once it was workign then throw in aftermarket parts.....pull the plugs are they black or white...rich or lean...throw a vacuum guage on the thing....

i have checked the timing, that is fine, and i have checked visually to see if all my hoses and whatnot are on there good and it seems good, i dont know how to use a vacuum gauge :S. BTW i didnt throw on any aftermarket parts on except my intake. Checked the plugs today and good old bbarbulo says they looked fine when i showe d him pics. the car feels like its running fine other then the bogging out when u get to 3000-4000 rpm then of course it just stops climbing once it gets to 4000 rpm :(

To me it honestly still sounds like a fuel starvation problem.

Check your fuel lines near the pump and throughout the chassis for kinks or blockages, especially the return line. With nothing connected to either end air should be able to flow freely through the lines.

Have you checked your voltage on your TPS? Might be something to look into as it's quick and easy...

Quick question for you Kieran, do you know how long the engine you installed had been sitting? There could be old solidified fuel deposits in your injectors and they may need to be cleaned.

What you really need to do though is verify the fuel pressure when the engine is under load. The only way to do this is to run and interior mounted fuel pressure gauge, not a bad idea if you plan on running a turbo setup in the near future.

Best of luck.

thanks shawn, im kinda thinking it is fuel starvation as well, when i installed my other injectors it would rev up higher but quicklyu went back to normal, the same thing happened when i installed the other fuel pump. The engine was sitting for all winter long :S in my garage. I am gonna go and install some new fuel in the car now, i was running it before with new gas mixed in with a bit of old gas that has been sitting in the car for a bit. If that doesnt work im gonna check all the lines like u suggested shawn :)

Thanks for all the help brotha'

oh yeah, and how much is a fuel pressure gauge?

in the time it take u to post that u could have...

http://www.google.ca/search?hl=en&q=...+gauge&spell=1

it depends on what brand you want..

UPDATE:
ran no exhaust to see if catr was plugged up
changed FPR

now throwing a code 43

Fuel supply system
oxygen sensor


Check the fuel pressure, fuel pressure regulator (chapter4) also check for any vaccuumm leaks