EGhachiback

Ok, so I have been having symptoms of my car with extremely low idle when I start up ( 500rpm but evens out after a couple mins to 1k RPM), losing small amount of fuel pressure (FPR reads 40 psi instead of 45 where it used to be I believe), and my car stalls when I press the gas.

Here's what I've done so far:
Adjusted k-tuned hall effect TPS+New gasket (using multimeter on DC 20v. CT reads 1 & WOT reads 4.50)
Cleaned IACV+Wiped inside the sensor (The magnetic probe still spins but got a new IACV should be coming in soon)
New TB gasket
New Full synthetic oil change+oil filter
New NGK iridium spark plugs
New thermostat+coolant flush
New MAP sensor
Checked for vacuum leaks(none to my knowledge)
Checked for any leaks(none)
Checked for bad grounds(none)
Checked for bad fuses (none)
Checked injector pulse (steady)
Checked battery (12.40v)
Checked Relays (Good no burns, corrosion, etc...)
Reset the ECU after anything was done/tested

Purchased a new Walbro 255lph fuel pump today from Karcepts, and I hope its here soon. Have not checked for compression, or valve lash. My chain seems to be on their just right. I have No KPRO

If you have any ideas that would be great, thank you in advance

Mods:
Type R valvetrain
Type R camshafts
Type R ECU (PRC)
Short Ram Intake
Walbro 255lph pump
FPR

EGhachiback

Update: tried a new TPS from O'reilly, and it stopped my really low idle. But when I still press the gas it wants to die... Please help me... I've been at it for like a month now trying to figure this out, and its killing that I'm not able to drive it. Driving is a passion let alone a getaway from me, call it like a vacation when I'm just cruising. please HT help me out here...

Fuel pump, and IACV should be here this Wednesday, hopefully all goes well.

Vjscrx

I have the same exact problem right now word for word....
1991 CRX
Accord k24 engine
civic Si transmission
Civic Si intake
KPRO

Car idles at about 500rpm
It will rev in neutral but hesitates
If I put it in gear it Boggs
Been having this issue for about s year and haven't been able to drive her since

I could really use the help i don't want to miss out on honda day, please any help would be appreciated

ferio-ichi3

Adjust tps?

Vjscrx

Did that work for you?

Vjscrx

Help?? Anyone???
Bump

Vjscrx

Bump

Vjscrx

Bump

EGhachiback

Ok so I ended up bringing mine to a shop since I couldn't figure it out, but they did. IT WAS THAT THEIR WAS NO HOLE ON MY THROTTLE BODY GASKET FOR THE MAP SENSOR ! I bought that an O'reilly gasket thinking it was drop in.... Boy, was I wrong... I never knew that their was a hole for it neither did it need one. Check your gasket, vacuum leaks, IACV, spark plugs, and make sure TPS has the correct voltage. I installed a new walbro 255lph fuel pump, but that didn't fix my problem but it also may be that as well.

GL, and let us know thanks

Vjscrx

I hooked up the ECU to my laptop and it throws a code for
IACV.......I don't have a IACV sensor I have the delete so idk.....
I will change the spark plugs and maybe coil packs but I know it's not that.....

It just won't rev past 2000rpm in any gear???

EGhachiback

Have you disabled the iacv through k pro ? Try a new tps for your idle problem, I bought it from a auto parts store, adjusted voltage, and boom idle was good