so...its been about a week now after my mini me and the car seems weaker overall. my powerband is weak overall. with my a6 after 4k rpms it really got going...but it doesnt seem like it is right now. what could be the problem?
set up:
d16 a6/z6
obd 1 converted
p75 w/ vtec added w/ chipped XS chip
91 crx si

 

sounds like vtec isnt working. wat car is a p75 from? try a p28 anyways maybe itll work. sohc vtec should pull a LITTLE harder than an a6. dont expect to **** ur pants but make sure ur vtec is working.

 

can you tell if your vtec is engaging? maybe try a different ecu, it might not have been done right.

 

I have the exact same setup except with a p28 ecu.....car seems a little but quicker....not as much as I had expected but it pulls pretty good and the powerband got a lot higher in RPM's I am overall pretty happy with it though

 

are you sure you pulled the oil jet plug out?

 

oil jet is out, vtec light hooked up to it. it is working as the right RPM.
when i had my p28 in there it pulled harder then before. but the p28 was fried and was in limp mode. so i drove like that for a week till i got the p75. it really felt torquier with the fried p28 but some one said it might be because of the extra fuel its getting....

 

the guy that chipped it is pretty reputable...im not sure what it is...but seriously it feels way weaker.

did a compression check 200 across the board


you know whats weird? i remember now the first time i was able to actually test vtec....when i hit it my rpms got jump happy when i reached it...but it only happened once...i tried it again after wards didnt do it...now if my vtec is broken or doesnt work it should give me a cel right? just cause my vtec light comes on does it mean vtec is really working?


Modified by LoCoReX at 11:01 PM 4/24/2005


Modified by LoCoReX at 11:09 PM 4/24/2005

 

if your vtec light comes on it means that the solenoid is gettin a signal from the ecu. could be a bad solenoid. jumping rpms indicated a bad ignitor if im thinking about the same thing.

 

hmmm dizzy is brand spanking new from DK when i say jumping i mean like from 5100k it zoomed up really fast

 

when you say that it zoom at 5100 rpm its suppose to do that... bcuz the power band gets weak around 4400 rpm t0 4600 rpm...
set the vtec crossover to 4600 rpm and you will notice that your car is not losing any power... but you wont feel that kick during vtec crossover....

 

no no no...i meant that happened once. the first time i checked for vtec...but after that it never zoomed again EVER.. get me?

 

kinda vague with your "zoom" discription did the car feel like **** at 5100 the first time? i would try a p28 for most "chips"

 

What is your iginition timing at? Are you using a cam gear?

 

yea im really iffy about this p75 ecu...i got some one to fix my p28 so we shall see next week when i get it back to see if thats teh real corpurt. iginitiion timing is at default checked/adjusted it with timing light. and no cam gear
oh yea the car felt AWESOME the first time like it pulled like crazy. when vtec hit