Hey guys, for all those who know i've finally gotten my car back, but ever since i got it, it's been stalling. It stalls when i come to a complete stop, i'll downshift and slowly stop, but if i don't stop slow enough, the car stalls. It seems as though the car wants to idle around 300 rpms for a short while, then kicks itself back up to 700-800.

I also have an odd fuel managment system, that is delivering 35 psi w/stock injectors at idle, and around 47 psi when driving, if any of that helps us decide what might be happening.

- Jay

Do you have a lightened flywheel? I've heard of this causing similar probs.

Matt

Could try sdjusting the set screw that sets the throttle plate angle. ir the IAC sensor, maybe TPS.

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Yes, i have a lightened flywheel, itz non-modular though. I have a 97 block w/je pistons, crower rods, port and polished head, w/new valves, springs, and sleeves. The head is a 97 head w/the 97 cams. I don't know what the fuel pressure is supposed to be, i'm HRC bought a stage II kit, but i obviously went well beyond that, and i had continuious problems w/the fuel pressure reg. that came w/the kit, so i went with another system. what should the fuel pressure be at, at idle?

LAST EDITED ON 15-Nov-01 AT 03:57 PM (PST)

LAST EDITED ON 15-Nov-01 AT 03:56 PM (PST)

>have a 97 block w/je
>pistons, crower rods, port and
>polished head, w/new valves, springs,
>and sleeves. The head
>is a 97 head w/the
>97 cams. I don't
>know what the fuel pressure
>is supposed to be, i'm
>HRC bought a stage II
>kit, but i obviously went
>well beyond that, and i
>had continuious problems w/the fuel
>pressure reg. that came w/the
>kit, so i went with
>another system. what should
>the fuel pressure be at,
>at idle?

Didn't realize what mods you had in my original response, so I'll try again. OK so 8.0:1 pistons, stock injectors, aftermarket FPR, stage II. What type of FPR did you end up getting and what ratio is it. Since you have lower compression, you'll need a slightly different amount of fuel than stock 9.6:1 compression at the same boost level. But...the recommended fuel pressure for stock compression is a good start...Here are the stock comp fuel #'s

idle: 45-55 psi
6 boost: 80-90 psi
9 boost: 105-110 psi

You need to verify that your FPR is capable of a similar fuel pressure curve. Then you could change the pressures some watching your EGT's and A/F. Considering that you have 8.0:1 pistons now, whats keeping you from dumping the stock injectors and upping the boost (maybe using an Accel DFI and following HRC's recommendations for fuel).

Corbin
'95 ESI-T
HRC + FMIC

check lins for vac leak also.


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O2 sensors? just a thought...since i know dino said his got blown after all that engine rebuild stuff......


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1997 RS

idle FP should be around 47-55psi according to HRC's manual.