4000 ish RPM break up..

***Herblenny*** · 09-04-2009, 12:51 PM

So, this is kind of weird..

My car breaks up around 4000 RPM when the engine is not fully warmed up.. Anyone know why?? My only guess at this point is the coolant bypass to the TB and TB isn't warming up quickily.. Has anyone else noticed this issue?? and any solutions?

Thanks!

PHIL

9G Redline · 09-04-2009, 09:36 PM

Phil, you wouldn't be talking about the rev limiter for the engine when the engine is cold would you?

chickenwafer · 09-05-2009, 11:31 AM

If you have the latest Mazda flash they lowered the threshold for revving a cold engine. If it only does it when it's cold then it's probably that.

***Herblenny*** · 09-05-2009, 11:00 PM

Really?? I didn't know they did that.. But it does rev up to 6+K under low load..

Dzire · 09-06-2009, 12:44 AM

my car done this since the day I bought it only in the winter time I think when the car is below 100 in it runs really rich causing ignition breakup when it warms up it runs fine

I8U · 09-26-2009, 12:52 PM

^Spot on, also the flash program will not allow it. Helps save the engine...

Renesisking · 11-26-2009, 11:54 PM

yea i lose power from around 3k-4300k then i lose it from 5ish to after 6500rpm, then i just have no pull up to redline, this is my second engine, i took it to a different dealership and they said that my intake manifold wasnt cleaned properly is all gunked up....any ideas??

I put in new sparkplugs very recently, i barely have a thousand miles on them.

Nutsid · 12-01-2009, 06:28 AM

Quote:

Originally Posted by Renesisking

yea i lose power from around 3k-4300k then i lose it from 5ish to after 6500rpm, then i just have no pull up to redline, this is my second engine, i took it to a different dealership and they said that my intake manifold wasnt cleaned properly is all gunked up....any ideas??

I put in new sparkplugs very recently, i barely have a thousand miles on them.

If your intake manifold is all gunked up... that is your answer.

DOMINION · 12-05-2009, 05:43 AM

I dont have this issue at all. In fact if I dont let my car warm up to operating temp and drive my rpms try to pull up fast at 5, rpms

scottie0330 · 02-09-2010, 10:31 PM

any ideas on how to clean the intake manifold valve?i just got a 04 rx8 and the light came on and said that the intake manifold valve was stuck open.iv been trying to find out what it was and how it effects the car.

mazdadude7 · 02-09-2010, 10:46 PM

Check the SSV valve its also got a tsb. Here is a video of them cleaning it http://www.vimeo.com/7093611 I cleaned mine and it helped. It needed to be cleaned and it didnt throw a 2070 code. so it could be that even if it has not pulled a code yet.

scottie0330 · 03-09-2010, 08:50 PM

wow man thanks for the video!thats going to help alot.how was your car running with it dirty?did your mpg go down?and this looks like something i might can do over a weekend but what was used to clean it? this is my first rotary car so i dont really know that much about whats going on with these valves and stuff.thanks for the help.

09-04-2009, 12:51 PM	#1
*Herblenny* Founder/Administrator/Internet Pitbull :) Join Date: Jan 2008 Posts: 644 Rep Power: 10	4000 ish RPM break up.. So, this is kind of weird.. My car breaks up around 4000 RPM when the engine is not fully warmed up.. Anyone know why?? My only guess at this point is the coolant bypass to the TB and TB isn't warming up quickily.. Has anyone else noticed this issue?? and any solutions? Thanks! PHIL __________________ DGRR 2013 - Year of 13B www.DealsGapRotaryRally.com http://www.facebook.com/Herblenny

09-04-2009, 09:36 PM	#2
9G Redline Rotary Fan in Training Join Date: Feb 2009 Posts: 61 Rep Power: 17	Phil, you wouldn't be talking about the rev limiter for the engine when the engine is cold would you? __________________ Original owner of a 04 WB Rx8 6spd Touring. Mazdaspeed CAI, MS Dual Catback, Voodoo knob, Boston Audio, AP Pulley, Rotora slotted rotors w/ Hawk HPS pads. 2nd engine @ 83,147 miles. Second owner 2005 Mazda 3 5-speed (Traded) 1st owner 2010 Black Mazda Mx-5 6-speed with PRHT. More mods and rotaries to come!

09-05-2009, 11:00 PM	#4
*Herblenny* Founder/Administrator/Internet Pitbull :) Join Date: Jan 2008 Posts: 644 Rep Power: 10	Really?? I didn't know they did that.. But it does rev up to 6+K under low load.. __________________ DGRR 2013 - Year of 13B www.DealsGapRotaryRally.com http://www.facebook.com/Herblenny

09-06-2009, 12:44 AM	#5
Dzire Rotary Fanatic Join Date: Apr 2008 Location: B,ham AL/Hollywood FL Posts: 151 Rep Power: 18	my car done this since the day I bought it only in the winter time I think when the car is below 100 in it runs really rich causing ignition breakup when it warms up it runs fine __________________ RX8 2004 GT RX7 1988 TII

09-26-2009, 12:52 PM	#6
I8U KONI Challenge Crew Join Date: Mar 2008 Location: Goldsboro, NC Posts: 126 Rep Power: 18	^Spot on, also the flash program will not allow it. Helps save the engine... __________________ 04 TiGray RX8 MT, LS2 coil setup, 3" midpipe, HKS Hi-power 3" exhaust, TEIN S-Techs, Hotchkis Adj F/R sways, K&N Typhoon V2, Steel braided brake lines, Redline drivetrain fluids, ATE Super Blue brake fluid, Cobalt XR2/GTS brake combo, MB Motorpsorts Weapons 18x9 +45 offset, 275/35's I Support the KONI Sports Car Challenge!

09-05-2009, 11:31 AM	#3
chickenwafer Boost Whore Join Date: Jun 2009 Location: Northern Colorado Posts: 33 Rep Power: 0	If you have the latest Mazda flash they lowered the threshold for revving a cold engine. If it only does it when it's cold then it's probably that.

11-26-2009, 11:54 PM	#7
Renesisking Rotary Fan in Training Join Date: May 2009 Location: Connecticut Posts: 39 Rep Power: 0	yea i lose power from around 3k-4300k then i lose it from 5ish to after 6500rpm, then i just have no pull up to redline, this is my second engine, i took it to a different dealership and they said that my intake manifold wasnt cleaned properly is all gunked up....any ideas?? I put in new sparkplugs very recently, i barely have a thousand miles on them. __________________ 2004 RX-8. I would love to tune it but can't find the right parts for Microtech

12-05-2009, 05:43 AM	#9
DOMINION KOOL AID KILLER! Join Date: Dec 2009 Location: Nevader Posts: 4 Rep Power: 0	I dont have this issue at all. In fact if I dont let my car warm up to operating temp and drive my rpms try to pull up fast at 5, rpms __________________

02-09-2010, 10:31 PM	#10
scottie0330 The Newbie Join Date: Feb 2010 Location: Alabama Posts: 4 Rep Power: 0	any ideas on how to clean the intake manifold valve?i just got a 04 rx8 and the light came on and said that the intake manifold valve was stuck open.iv been trying to find out what it was and how it effects the car.

02-09-2010, 10:46 PM	#11
mazdadude7 Rotary Fanatic Join Date: Feb 2008 Location: Franklin, NC Posts: 410 Rep Power: 18	Check the SSV valve its also got a tsb. Here is a video of them cleaning it http://www.vimeo.com/7093611 I cleaned mine and it helped. It needed to be cleaned and it didnt throw a 2070 code. so it could be that even if it has not pulled a code yet.

03-09-2010, 08:50 PM	#12
scottie0330 The Newbie Join Date: Feb 2010 Location: Alabama Posts: 4 Rep Power: 0	wow man thanks for the video!thats going to help alot.how was your car running with it dirty?did your mpg go down?and this looks like something i might can do over a weekend but what was used to clean it? this is my first rotary car so i dont really know that much about whats going on with these valves and stuff.thanks for the help.