start up, running issues

[MRX]

ill get in touch with him tonight. i doubt it. if his iacv is gone, than the computer will not let fuel send. cus when its running the air is comming in, the iacv on idle is telling how much air its getting. if it cant send anything to the computer, the computer just wont send him the fuel he needs. thus shutting off the engine. thats my thery.


btw f20 guys, any performance parts could be bought from honda-performance.com.

negative sir, the IACV serves the purpose of assisting the engine's idle. The MAP always controls the fuel being injected because it calculates how much vacuum the engine is pulling at any given time, locates the rpm, and injects fuel according to the fuel map. The IACV is there mostly for extra load on the engine such as the power steering, heat, and a/c. Without it the engine has a bit more trouble compensating for the drop in vacuum caused by these loads. It opens up adding air in to raise the idle and keep the engine from dying. Not because of anything with air fuel mixture but because the revs would be dangerously low and show the engine off in most cases.

Or atleast thats my understanding of it.

[quickangel93]

negative sir, the IACV serves the purpose of assisting the engine's idle. The MAP always controls the fuel being injected because it calculates how much vacuum the engine is pulling at any given time, locates the rpm, and injects fuel according to the fuel map. The IACV is there mostly for extra load on the engine such as the power steering, heat, and a/c. Without it the engine has a bit more trouble compensating for the drop in vacuum caused by these loads. It opens up adding air in to raise the idle and keep the engine from dying. Not because of anything with air fuel mixture but because the revs would be dangerously low and show the engine off in most cases.

Or atleast thats my understanding of it.

thanks, i thought wrong. so in his case, he needs a different map.

[MRX]

maybe, i need to know the answer to the warm idle question first.

[almostJDM]

and the answer is yes i do need to keep my foot on the gas to keep it running when warm

[quickangel93]

ok mrx, he needs to hold the gas still even when warm.

[almostJDM]

ok i think the map does play a part in this i think it too rich cause i tried a different map which i was running earlier and it stayed runnin when warm but it still did the idle bouncy thingy which is cause of the iacv

[d112crzy]

there's more than one thing that cause a bouncy idle.

http://cb7tuner.com/vbb/showthread.php?t=53161

[almostJDM]

i know but im throwing an iacv code and ive already done all the things in that thread cause b4 this happend i wanted to get rid of my idle prob but no luck

[d112crzy]

you have that 4 wire iacv right?

[almostJDM]

3 wire i bought an adapter plate so i can use ym f22 iacv with it

[MRX]

whats the cold idle value on the map for the one that stayed running and the one that didn't? It'll probably also help to decrease fuel by 30% from 0-3000rpm and from 25 in/hg to 16 in/hg. I'd do that on the map i sent you. Also bouncing idles can be caused by very lean a/f mixtures at idle. Probably not the case here tho, just tossing that out for future references.

[almostJDM]

heres the values for the map that didnt stay running even at NOT
in/hg>24.70/ 22.24 / 19.82 / 16.57
RPM
500 8.5 / 31.25 / 65.25 / 102.75
648 13.25 / 41 / 81.5 / 104.25
750 14.75 / 49.25 / 88 / 108
1000 18.5 / 46.25 / 69.75 / 108.75
1250 19.5 / 43 / 71 / 109
1500 19.5 / 44.5 / 72 / 114.75
1750 20 / 48.25 / 71.5 / 123
2000 21 / 48.5 / 69.75 / 127.5
2250 23 / 51.25 / 69.25 / 129
2500 23.75 / 49.75 / 70.5 / 129.75
2750 24.75 / 51 / 71.75 / 123.75
3000 25.25 / 50.25 / 68.25 / 124

and the map that stayd running at normal operating temp even tho it was only at 500or less rpm
in/hg>26.32/ 22.24 / 19.82 / 16.57
RPM
500 17.5 / 104.25 / 148.25/ 152.5
648 30.25 / 113.25 / 155 / 154.5
750 35.5 / 119.25/ 161.5 / 160.5
1000 44.5 / 127.5 / 168.25/ 162.5
1250 47.75/ 137.5 / 181 / 164.5
1500 47.75/ 139.25/ 183.25/ 171
1750 48.25/ 140.75/ 185.75/ 183.25
2000 48.25/ 134.5/ 176.75/ 179
2250 48.75/ 128.75/ 167.75 / 175.25
2500 48.75/ 123.25/ 158.75/ 171
2750 49.25/ 117.5/ 149.75/ 167.25
3000 50.25/ 117.5/ 149.75/ 170.5



im gonna stay with yours mrx it runs so smoothly lol revs liek silk so im gonna lean it out like you said



edit: wait wtf its runningn richer then yours is but it pops and sputters and when i first press on the gas to keep otr running it bogs unlike yours where it revs fins no bogging and ther no poping or sputtering

edit #2: lol i was looking over the other map and noticed that there high fuel looks liek your low fuel same with the ignition thats probably why it wasnt running right


edit#3: oh and forgot the idle values they are both at 100

[almostJDM]

ok so i should be gatting my adapter plate in either tomorrow or thursday then i gotts head to a JY and grap an iacv clip then we'll see if she fires and runs with out giving it gas

[blizzard335]

good luck man! i see ur having some difficulty wit her.. the labour of love, i wud say.. j/k..

cheers man!

sorry cant help u out much..

[almostJDM]

good luck man! i see ur having some difficulty wit her.. the labour of love, i wud say.. j/k..

cheers man!

sorry cant help u out much..

dont worry bout it and as a matter of fact it is a labor of love cause i love doing these kinda things and i know eventually it work out and i can see that happening very soon thanks to the help of everyone on this board that have helped me so far thanks guys

i have the rough running part sorted out she runs so smoothly now i just gotta keep her runnig lol and im hoping that the iacv will fix that