Rx8 turbo lagging help please!!
#1
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Rx8 turbo lagging help please!!
I just got my rx8 back together. i bought the car got a good deal because it wouldnt start. i had to replace the engine. the car had a greddy turbo kit on it. i put it all back together and it ran good for about a day the boost gauge was working and everything. Then yesterday the blow off valve was messing up found out the greddy type rd bov screw on to was stripped. fixed that but then today the turbo lags in 4th 5th and 6th sometimes in third it will build boost then lag. and help would be greatly appreciated. i am new to this rotary engine stuff and turbo stuff. Thanks in advance.
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Also fix #2 where do i hook up the line? There is already a tap that is hooked to the boost gauge. Do you hook it to the emanage sensor hooked to the bov and intake?
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Good luck!
Cheers
Last edited by jay_tibo; 09-21-2012 at 07:37 AM.
#12
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Also make sure the oposite isn't happaning and your detonating from running lean it would sound like a bucket of bolts. Did the previous owner state why the engine blew? That sounds rich could be a leak, but definatly invest in a wideband A/F gauge. I would take is easy on her till you find the issue, also keep in mind the high gear higher speed pulls ask more from your fuel system. Get everything up to snuff to avoid changing the engine again. Any budget left over from doing the swap?
#14
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That's a intake tunning code, make sure the 2 vaccum line going from the upper intake to the lower intake valves are connected and that the acctuation functions properly and that the wiring harness at the back of the upper intake all 3 connections are pluged in. Budget wise, access port MazdaManiac (this also inludes him tuning it!) $600, coils BHR $550, A/f gauge $200, fuel gauge $100 + $65 for the BHR Aeromotive fuel line adapter, $100 upgraded fuel pump. If you can muster that it would help for sure!
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it just threw p0301 code also. i checked all lines and connections where is this valve so i can check the operation and how do i check the operation?
#17
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You have one valve on the side close to the front of the motor and one in the middle under the upper intake manifold. This other code is not good it's a misfire, get a good rotary compression test done you may have to go to Mazda, cross your fingers you didn't blow this motor, and if you didn't you need the parts list I posted above before driving this car any further. Stay out of boost till you know.
#19
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Make sure the arms move well and there's no un-linear resistance. But honestly this is the least of your worries at this point. E-manage is very basic, untunable, and generally unreliable, but it may not be the culprit. Did you swap the engine out yourself?
#20
I am not sure the e-manage ever 'properly operates'
If you find your leak or stuck valve wherever, you are still in for lots of hurt until you get a better management setup
If you find your leak or stuck valve wherever, you are still in for lots of hurt until you get a better management setup
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yes i did the engine swap and im not sure i have the greddy system hooked up correct but i have everything hooked up the way it came off. i just checked the valves and they are fine.
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I've got a VTA BOV and it works great, but it's a dual piston Forge that doesn't leak at idle it needs vacuum and positive pressure to open.
If everything is top shape with the BOV and intake side of things, maybe turn attention to the tuning, it be nice to see a data log of whats going on. Or possibly fuel pressure but this would be under hard acceleration and would recoup faster then what it seems to do (higher gear needs more fuel for the same RPM and throttle)
http://www.greddy.com/upload/file/03-RX8_TK_T618Z.pdf that's the link to the turbo installation if you want to double check e-management and other things
cheers
Last edited by jay_tibo; 09-21-2012 at 06:27 PM.