first of all i like to start off by saying that this is the best place in the world for help and hints. and you guys have always helped before. okay so i have a eg with a b16a in it . my rpms stay at 2000 and wont drop . i deicide to clean iacv to see if that helped a little i got it down to 1500 but then i moved the wired from the map sensor and the rpms moved right back up 2000 rpms . so i started to wiggle the wires from the map sensor and it started to drop but then as i stopped it went back up so i kept wiggle it to see if anything would happen and i kept on getting the same response. so i changed my map sensor with a new one and it still kept on doing it. so how can i go about and determine if my wires are bad and if so can i just cut the three wires and splice it with a different map senor plug. also i do have a code on my car it flashes seven little flashes and one long flash!

 

Adjust Your Idle Screw??????

 

i did that it don't help its doesnt help also i did cleand my i don't think its my iacv because i would of had my rpms bouncing up and down. it aint don't that it just stays at 2000 rpms

 

yea you can splice in a new map sensor connector, just make sure you sotter ther wires, you have a check engine light for....

7. TPS- Throttle Position Sensor
10. IAT- Intake Air Temp Sensor

Edit: i would say it is your TPS that is messing up you idle

 

tps sensor you have to have it calibrated right?. also where is the intake temperture sesnor at in a b16

 

yes i beleive you have to calibrate it, obd1 or obd2 b16?

 

sorry obd 1 b16a also ecu stock p30 ecu

 

You didnt ever unplug the tps an map while taking the iac off did you? The plugs are the same for the map an tps lol

 

ok if your looking at the intake manifold from the front the the car the IAT is on the second runner from the right

 

oh okay i see it its that little white plastic thats in the manifold right.

 

i have a similar problem heres whats going on my idle sits at about 1500 at start up slowly goes down to about 1200 maybe and stays there it drops some times but never below 1k it used to be low then i adjusted the screw a brought it up to about 750-800 it was fine for a good while, then when i drove it for a while at least 20 min it would get high and start to bounce, now it sits high i tryed adjusting the screw but no luck ive checked for vac leaks but cant find any any sugestions?

edit: its a 92 vx btw d15z1

 

i have the same problem too and i adjusted the screw but it didnt work either. and i bet its probably a easy fix and its killing me inside to fix it. oh well im going to try again tommorrow and clean the iat see if that helps a little.

 

i have a question? i was still trying to figure out the rpms problem when i noticed that my iat sensor has a plug with on wire coming out. now correct me if im wrong but don't it suppose to have to wires coming out of the sensor?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaon18’s &raquo;</TD></TR><TR><TD CLASS="quote">i have a question? i was still trying to figure out the rpms problem when i noticed that my iat sensor has a plug with on wire coming out. now correct me if im wrong but don't it suppose to have to wires coming out of the sensor? </TD></TR></TABLE>

Yep, green/blue stripe red/yellow stripe, this is a OBD1 B16A BTW:

 

yes it is obd1 b16a and i have a black wire and red wire with a green strip on it does that sound about right

 

Color doesn't mean much. But you said...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaon18’s &raquo;</TD></TR><TR><TD CLASS="quote"> i noticed that my iat sensor has a plug with on(e) wire coming out. now correct me if im wrong but don't it suppose to have t(w)o wires coming out of the sensor? </TD></TR></TABLE>

And now you are saying it has two wires?????????

 

yeah im was just trying to make sure that i was correct thats all !

 

Im having a problem just like this I have a Ek with OBDII gsr and the idle stays at 2000 when it warms up it might drop to 1500 or 1600 but then it just stays there?????. what should the Idle be at?
any thoughts????

 

Hayne's manual says that idle speed should be at 750 +/- 50 rpm for the B18C1.

Could be a faulty IACV? Throttle plate not shut all the way?

 

anyone have a vaccume diagram for a 92 hatch
so i can make sure to check all the lines for cracks or tears

 

how can to check to see if the iacv is not shut all the way. and i thought that if the iacv is bad that it would make the rpms jump up and down?

 

okay to keep every one updated on this problem it was my tps sensor it was not calibrated right so i took it to this place called one six motorsports in elk grove and they calibrated for mei got the little beast to run fine. now the rpms are were they suspose to be. so i thought i would let everyone know who had or has a problem like this or similar.