b20civicowns

ok so im still havin a few problems here guys so any help would be greatly appreciated. so heres where im at. i start up my car and it idles really rough, its not a bouncey idle like a vaccum leak so i dont know, also it stalls out if i dont rev it a few times. and the worst part is when i put it in gear and try to take of, it doesnt go, it starts to move then just sounds like its choking and goes like 5 miles an hour, and if i pin it it jumps quick then just does the same ****. im so confused... i switched out the 3 wire iacv an wired i the 2 wire one so thats all set, but it still runs like that. i havent had the time to wire in the tach (prob later tonight) so i dont know exactly what its idling at. but what do you guys think it could be. fuel, spark, timing, ect... i dont know.

i dont know its important but i have a skunk2 im, and a 66 mm tb. maybe not enough fuel... im also running a obd2 to obd1 jumper harness with a p75 ecu.

help me out HT.

s0flyy56

Ecu might be burnt or wet....my b16 ek hatch did same and ecu was wet the whole time...kind of sounded like a sti with exhaust lol

b20civicowns

how could i tell that? and could it be the jumper harness? should i just try and find an obd2 ls ecu?

any other suggestions guys?

b20civicowns

help, my car sounds like a cammed v8 lol

Former User

Plugs, wires, cap, rotor?

CEL codes?

Mechanical timing off by a tooth?

phaphon

yeah does sound like it could be plugs or wires and what ^ he said

b20civicowns

well i just changed the plugs, no the wires or the cap and rotor. and thats another question i had. because im running the conversion harness to obd1 how do i check the cel lights? the same as b4?

and my brother timed it for me while i was on vaca, is it possible that the timing is off. does that sound like possible symptoms?

b20civicowns

ok so heres the codes im throwing, i figured out how to check them... 3-map, 7- tps, 14 iacv, 41 primary oxygen sensor heater???

b20hatchek

try changing those out, don't try driving it anymore until you can the motor to idle right

Former User

You may have swapped these connectors. Make sure the wire colors match the sensor.

Check whether 7.5A dash fuse 15 is blown.

itslogz

Sounds like you swapped the connections like stated above. My car has ran like you describe and wasnt even drivable because of the MAP sensor code.


The TPS should have a red/blk wire in the center of the 3 wires and the MAP should have a grn/wht wire in the center of the 3. Sounds like you got them reversed, and double check your IACV pinout. Did you move A14 to A12 properly and its secured and remove A13 /orange wire at the plug completely? I recently did it with no issues.


Just incase you need to see a 100% sure diagram if you checked somewhere else

http://www.ff-squad.com/tech/wiring/...-98_a-plug.jpg

b20civicowns

ok so i switched the tps and map sensors and started her up and first it sounded decent then i gave it some gas and it started running like **** again and blowing out some smoke. so i turned it off and started it again and it sounded like it was idling at 3grand and if i tried to give it gas it would just drop the idle and stall. WTF this sucks

b20civicowns

o and yeas the 7.5 fuse in 15 is fine and i def wired the iac right. follwed the instructions to the T.

Former User

Did you switch the TPS and MAP sensor connectors because they were mismatched? Did you check the wire colors?

If you now reset the ECU and run the engine, what CEL codes if any are now thrown?

b20civicowns

yeah i switched them, i just need to reset the ecu. i didnt have time before work but as soon as im out ill be taking care of that. and i have my buddy goin there now to check my timing to make sure its 100% as well. are you sure that the tps on my 97 dx harness is the 1 with the red/black in the middle????

b20civicowns

ok so i messed around with the map and made sure the wires were in the right spot, and reset the ecu, started it. its still doing the same thing as before, but now im just throwing codes 10 and 41 still, i know 10 is the iat. but that wouldnt effect the way the car was would it???

Former User

Don't ignore the CEL codes. Fix them and also check the mechanical timing.

eg_civic95

my car did the samething when i rav it stall out n found out battery cables was bad once i change them it was all good

b20civicowns

i swapped out the map sensor just to check because my buddy said thats what he was thinking it was and that did nothing. so now my only codes are the iat and o2 sensor heater. im really starting to think timing is off a tooth. does that soung logical.

o and thanks to every1 for your input so far.

b20civicowns

bump for input/help

b20civicowns

bump...

matt_lake

check your firing order

b20civicowns

firing order is 100% just checked to be sure... could it be fuel pressure? i have a fuel pressure gauge lying around somewhere.. could that be it.

ill try anything at this point

b20civicowns

bump, so we know its not the map sensor. so possibly ecu, tps, jumper harness, timing. or plugs cap and rotor. whats every1s opinion. o and it could also be fuel.

im open to any opinions. espescially if uve ahd similar problwms. PLEASE HELP LOL

b20civicowns

bump