Studdering under WOT
#1
Studdering under WOT
Ive had this problem pretty much since I finished swapping a 94wrx EJ20G into my 1993 L and I thought it might be some IC leak or cracked hose somewhere so I finally started poking around and I cant find any leaks or cracks. So far I swapped the TMIC for a better IC with silicone tubing instead of the crap plastic piping that comes stock and that had no effect. Checked hoses and couldn't find anything.
The problem starts happening somewhere around 8-9psi under wot. If I have maybe 3/4 throttle it doesn't seem to be an issue. I have a walbro pump so it should be starving for fuel. Any ideas?
The problem starts happening somewhere around 8-9psi under wot. If I have maybe 3/4 throttle it doesn't seem to be an issue. I have a walbro pump so it should be starving for fuel. Any ideas?
#4
bump !!!
im also eager to see whats going on here as mine is doing EXACTLY the same , when i hold the throttle 3/4 theres no problem but if i floor it , it really really seems to boost funnily , my boost guage goes wild flickering around , i only bought my car yesterday its confusing me !!
im also eager to see whats going on here as mine is doing EXACTLY the same , when i hold the throttle 3/4 theres no problem but if i floor it , it really really seems to boost funnily , my boost guage goes wild flickering around , i only bought my car yesterday its confusing me !!
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#8
i checked they appear to be ok no crakcs.. The rubber is surprisingly soft after being in a Japanese graveyard for a while There is one that broke off of the intake though but someone said that one isnt needed? the ones going to the boost solenoid etc are fine though I think it comes from that cluster of solenoids to a resonator in the intake after the maf
Last edited by norcalrallyist; 25 June 2007 at 04:47 AM.
#9
i checked they appear to be ok no crakcs.. The rubber is surprisingly soft after being in a Japanese graveyard for a while There is one that broke off of the intake though but someone said that one isnt needed? the ones going to the boost solenoid etc are fine though I think it comes from that cluster of solenoids to a resonator in the intake after the maf
#11
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#15
This proved to be true in my case as well.. I took the rubber boot of each coil as I replaced them and none of them showed any sign of cracking or fatigue in the plastic etc.. Thanks again
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