What are you using to address the delayed PFC boost?
10-12-04, 08:33 AM
#51
I cannot wait to crawl under and just switch the two hoses and see if it works better.... it was working for once and then stopped after an oil-pan job.... i'll bet they got switched.
If this has been it all along, off and on, for five years, i'll be a little pissed though.
If this has been it all along, off and on, for five years, i'll be a little pissed though.
10-12-04, 10:46 AM
#53
You don't need pics to swap the two hoses going to the actuator... it's easy to find... it's the big can to the passenger side of the oil pan with a hose going to the front, and a hose coming off the side. Those hoses connect to hard lines a short ways up, that run up to near the vacuum tank, and then connect to 'noids in the rack... check the vacuum diagram.
Originally Posted by BATMAN
this thread is worthless without pics 
04-13-14, 10:37 PM
#56
Thread revival...
I think im having this same issue. I was at the drag strip and the car would launch fine, first gear boost was fine but once I shifted to second gear it was 5psi all the way to 6k rpm and then it would finally shoot to 10psi. After I shift into 3rd gear it was back to normal 10psi at all times. So basically for all of second gear the car has minimal boost/power.
Does anyone have any more information on this? What to check, that 1-way check valve, solenoid or what? I have Apex'i Power FC and a Apex'i GT Spec axle back exhaust only.
Please help me get this resolved! Next track day is May 3rd and I want to get it fixed by then!
I think im having this same issue. I was at the drag strip and the car would launch fine, first gear boost was fine but once I shifted to second gear it was 5psi all the way to 6k rpm and then it would finally shoot to 10psi. After I shift into 3rd gear it was back to normal 10psi at all times. So basically for all of second gear the car has minimal boost/power.
Does anyone have any more information on this? What to check, that 1-way check valve, solenoid or what? I have Apex'i Power FC and a Apex'i GT Spec axle back exhaust only.
Please help me get this resolved! Next track day is May 3rd and I want to get it fixed by then!
04-14-14, 05:39 PM
#59
The one you want to take a close look at is the turbo control (pressure side) solenoid E. This will often pass a bench test, but will stick while in service--the problem is that there isn't quite enough spring in the solenoid to reliably release the boost pressure acting against its plunger. I developed a work around for this that I'll try to post up later.
04-14-14, 05:49 PM
#60
The one you want to take a close look at is the turbo control (pressure side) solenoid E. This will often pass a bench test, but will stick while in service--the problem is that there isn't quite enough spring in the solenoid to reliably release the boost pressure acting against its plunger. I developed a work around for this that I'll try to post up later.
05-01-14, 06:39 PM
#62
there are 2 of them one is on the SOlenoid rack and the other is bolted onto the lower intake manifold
Look up the hose vacume diagram and you will see which is which
https://www.rx7club.com/3rd-generati...-turbo-749702/
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