rally860

i got a 93 civic 1.5l non-vtec for free,it didnt run, i rebuilt the engine, and dropped it back into the car. i tried to start it, it starts right up, but it wont come off of an idle. even if i give it full throttle it doesnt do anything. i checked the TPS and the MAP sensors and they both work....i took the throttle body and intake manifold off to make sure everything was on right, and its all set...i get a code for the IAC, but i dont think that it would cause my car to not respond to anything at all would it? i really need to get this car on the road, because i drive a supra now, and that thing guzzles too much gas. Thanks to anyone who can help!

rally860

bump, i need help!

rally860

also, i made sure the timing was correct, and all the ground wires are hooked up correctly...ive got 12.6v for battery voltage so that should be all set too.....i really just cant figure this out.

HNP

try another ecu

bboygreddy

maybe check the tb cable?

-Gary-

plugs/wires.

Start with the cheap stuff.

rally860

i tried another ecu, new plugs, new wires, and the throttle cable is good too. i even threw my buddies map sensor on it too, but nothing....

tico

hey bra it has to be ur IACV. take it off and clean it with some carb cleaner and try throwin it on a buddies car. get back to me on it

rally860

its not the IAC, i just replaced it, but still nothing

WhiteOnRice

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bboygreddy &raquo;</TD></TR><TR><TD CLASS="quote">maybe check the tb cable?</TD></TR></TABLE>
Lol, that is what I thought too. It would be hilarious if he didn't connect it.

TranspeedMotorsports

Did you try revving the car from the throttle body?

deckster333

iTrader: (1)

wait so when you hit the throttle the engine does not respond? Have you tried to push the throttle open with your hand on the throttle body, or just by using the foot peddle?

rally860

haha, i definitely tried open the throttle at the throttle body, but still, it doesnt do anything...the only thing it does sometimes is just sputter and stall out....ive been going at this thing for a while now

rally860

i would appreciate any help i can get right now

rally860

bump for help!

Syndacate

Well it's great that you checked the TB cable...start your car up....and turn the butterfly by the spring on the outside (MANUALLY), not by use of the cable...

What happens?

beoy9

are you getting fuel pressure?

rally860

thats what i did, i manually opened the throttle by the spring on the outside....ive tried everything...i thought it might have been the signal wire from the TPS going back to the computer but i checked the voltage at the TPS and at the ECU and its the same voltage the whole range from about .8v to about 4.85v....this really sucks because its not like i dont know what im doing, this car has honestly just stumped me. any other ideas?

rally860

yes, fuel pressure is there too, i checked it with a fuel pressure gauge at the fuel filter

Blk00EJ8

Is it a possiblity that maybe you swapped your MAP and TPS clips?

t o m

take a good picture of your engine bay. maybe somebody can spot something for you

Syndacate

Make sure the butterfly is moving w/ the spring inside (that it isn't hung up) - take off the intake arm...reason why I think it's that rather than electricla is even if u let air in w/o giving it more fuel it'll sputter from running lean....but if NOTHING is changing then that leads one to believe the air isn't even getting in there.

rally860

i took the intake pipe off, and i know air is getting in, if i put my hand in front of it i can feel a lot of suction, vaccum at idle was kind of low around 10 inches...the map and tps connectors are correct....ive checked everything, ill take a picture for anyone who thinks they can help

Syndacate

Wow, I'm stumped, tough **** bro O.o

rally860

lmao, thanks