KLZE Motor problem(crazy motor)
KLZE Motor problem(crazy motor)
For some back ground info:
http://www.mx-3.com/phpbb2/viewtopic.php?t=26442
My engine has been installed for over 2 years now and has run great up into this point. I took the car to the mazda dealer awhile back for the current problems, and yet they had no idea what the problem was. They did pull the Throttle body and clean it, as well as cleaning the TPS & IAC sensors. They reinstalled and adjusted everything, and the car ran great for about 2 weeks.
THE PROBLEM:
My car will run fine, and at totally random times it will act up. It will only do this on rare ocasions. Sometime you can drive for hours and nothing, while other times it goes crazy with only 3mins or more between "acting up". When it "acts up" it does the follow:
Stoped @ light:(If it is reved and you try to drive it will flood the motor, and will not start again for alittle while)
1. Idle will be @ 700 rpms(steady)
2. Idle jumps to 3200 rpms (holds for 20secs - 2 mins)
3. Idle returns to 700 rpm
Driving:
1. Driving down the highway normal condtions
2. Car will increase speed till it hits 3000rpms
or
2. If above 3000 rpms already car will start to sputter hard and lose speed and power.
3. returns to normal within 20 secs - 1 min
Now out of all the gurus on this site, I just ask that you point me in some direction to start replacing parts. The car also is running really rich, and I am guessing that the O2's need to be replaced since they never have, but I don't think that relates to the current problem. Soooo please give me some info on what I should be looking for...
TPS
IAC
IAT
Knock
Crank
Coolant
Throttle Body
ECU
Car has the following upgrades:
KLZE(curved neck)
ECU(KL36)
Walbro 190
Adjustable Fuel pressure regulator
Hotshot Headers(small exhaust leak where the downpipe bolts to the header)
Also while I am asking this... If I installed the K8 IM, K8 injectors, and K8 ECU, will the car run ok and get 25mpg? I know with the K8 ECU and KLZE injectors it gets 16 mpg... I don't care about power anymore, I need it to be reliable.
Thanks everyone...
http://www.mx-3.com/phpbb2/viewtopic.php?t=26442
My engine has been installed for over 2 years now and has run great up into this point. I took the car to the mazda dealer awhile back for the current problems, and yet they had no idea what the problem was. They did pull the Throttle body and clean it, as well as cleaning the TPS & IAC sensors. They reinstalled and adjusted everything, and the car ran great for about 2 weeks.
THE PROBLEM:
My car will run fine, and at totally random times it will act up. It will only do this on rare ocasions. Sometime you can drive for hours and nothing, while other times it goes crazy with only 3mins or more between "acting up". When it "acts up" it does the follow:
Stoped @ light:(If it is reved and you try to drive it will flood the motor, and will not start again for alittle while)
1. Idle will be @ 700 rpms(steady)
2. Idle jumps to 3200 rpms (holds for 20secs - 2 mins)
3. Idle returns to 700 rpm
Driving:
1. Driving down the highway normal condtions
2. Car will increase speed till it hits 3000rpms
or
2. If above 3000 rpms already car will start to sputter hard and lose speed and power.
3. returns to normal within 20 secs - 1 min
Now out of all the gurus on this site, I just ask that you point me in some direction to start replacing parts. The car also is running really rich, and I am guessing that the O2's need to be replaced since they never have, but I don't think that relates to the current problem. Soooo please give me some info on what I should be looking for...
TPS
IAC
IAT
Knock
Crank
Coolant
Throttle Body
ECU
Car has the following upgrades:
KLZE(curved neck)
ECU(KL36)
Walbro 190
Adjustable Fuel pressure regulator
Hotshot Headers(small exhaust leak where the downpipe bolts to the header)
Also while I am asking this... If I installed the K8 IM, K8 injectors, and K8 ECU, will the car run ok and get 25mpg? I know with the K8 ECU and KLZE injectors it gets 16 mpg... I don't care about power anymore, I need it to be reliable.
Thanks everyone...
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- jschrauwen
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Engine flex may create intermittent vaccum leak issues. I say this when using the original rubber intake tube but I just looked at your pics and I see you're using a PRM intake.
'92 GS-ZE - sold, '95 GS - sold, '02 Protege LX - Daughter, '00 Audi A4 2.8 QTip, Ducati TT2
![Image](http://img139.imageshack.us/img139/9572/sigpic28vr.jpg)
90 JDM RHD 300ZX TT - 572.1 RWHP | 590.0 RWTQ | 21 PSI | Pump gas
![Image](http://img139.imageshack.us/img139/9572/sigpic28vr.jpg)
90 JDM RHD 300ZX TT - 572.1 RWHP | 590.0 RWTQ | 21 PSI | Pump gas
Got a update to this problem... Today I decided to unplug the IAC sensor.. I left it to idle for about 10 minutes, and then it just died. Tried to start it and it wouldn't. I had to put the gas pedal to the floor and start it that way cause it was flooded.. After plugging the IAC back in, I let it run for about 5 mins, and unpluged it again, to go for a ride. Now in the above post people said you can drive the car without the IAC connected. Well with it disconnected as soon as I touch the gas pedal it trys to die on me.. Its flooding the engine with a ton of gas...
IAC seems to be the only thing keeping the engine alive. This car is running seriously rich..
Do you think this is just the O2's??
The ECU throws codes: 9 and 16
16 I don't understand cause it is a Kl36 ECU which doesn't suppose to have a EGR system I thought?
IAC seems to be the only thing keeping the engine alive. This car is running seriously rich..
Do you think this is just the O2's??
The ECU throws codes: 9 and 16
16 I don't understand cause it is a Kl36 ECU which doesn't suppose to have a EGR system I thought?
could be sensors,
Like said before, reset ecu and run car until it heats up and fans kick in once. Then open the diagnostic box and jump pin 2 and 10 i think they are. Then set the idle where you want it when its hot. Then stop setting it.
Then let the car run for a bit like that see how it behaves. Then take it for a light cruise see how it acts. If that doesnt do it then could be sensors or vaccum.
Like said before, reset ecu and run car until it heats up and fans kick in once. Then open the diagnostic box and jump pin 2 and 10 i think they are. Then set the idle where you want it when its hot. Then stop setting it.
Then let the car run for a bit like that see how it behaves. Then take it for a light cruise see how it acts. If that doesnt do it then could be sensors or vaccum.
1994, GS, KLZE, 67mm TB, LightFlywheel, Centreforce Stg 3 Clutch, CAI, KL36 ecu, B&M shortshifter, Solid poly mounts, lightweight Aluminum Cross memeber, 2.5 high flo cat, 2.5 all back, Tanabe Exhaust, optima battery, ZX2 HD tokicos, eibach prokit, black altezzas.....
http://www.modifiedmazda.com" onclick="window.open(this.href);return false;.
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- XxantwawnxX
- Regular Member
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My car ran REALLY rich when one of my 02 sensors went. But 02 sensors throw codes....are u getting any for them..or just 9 and 16.
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* * * * * * 92 Mx3 ZET, rear/front swaybars,srd crossmember,HKS SSQV,cold air,ZE with millinia mani and TB and 280cc injectors,INtrax springs with tokiko HP struts, Grounding kit, MotegiTrakLite wheels 17's at 14lbs each, MSnS Running fuel and spark,HEI mod,T3/To4E .60/.63 stage 3 turbine,3rd gen rx7 fuel pump, SSAC Headers/hotpipes ,38 ext tial wastegate, findanza flywheel, SBC TZ clutch/pressureplate,braille11pound battery/ magnum drilled F/R rotors,projectors, CXmotorsports almuminum intercooler.
question that I had to??? Here is what I did to get there:
FEN + B+ = KLZE ECU LED
Doing this I got:
___ 4 secs
Codes start:
_ _ _ _ _ _ _ _ _ = 1/2 sec long
__ = 2 secs long
_ _ _ _ _ _ = 1 sec long
Now this would be codes:
9
16
Correct?
If it is true that KLZE's have no EGR then how do I have this code? Or does the J-Spec ECU's have different meanings for code 16?
FEN + B+ = KLZE ECU LED
Doing this I got:
___ 4 secs
Codes start:
_ _ _ _ _ _ _ _ _ = 1/2 sec long
__ = 2 secs long
_ _ _ _ _ _ = 1 sec long
Now this would be codes:
9
16
Correct?
If it is true that KLZE's have no EGR then how do I have this code? Or does the J-Spec ECU's have different meanings for code 16?
zevirii wrote:question that I had to??? Here is what I did to get there:
FEN + B+ = KLZE ECU LED
Doing this I got:
___ 4 secs
Codes start:
_ _ _ _ _ _ _ _ _ = 1/2 sec long
__ = 2 secs long
_ _ _ _ _ _ = 1 sec long
Now this would be codes:
9
16
Correct?
If it is true that KLZE's have no EGR then how do I have this code? Or does the J-Spec ECU's have different meanings for code 16?
Well pulled the codes again, and looks like I read them wrong the first time. Codes its giving me are:
9 Coolant Temp Sensor
1 IAT sensor
69 Coolant Fan sensor???
In that order... I Took the VAF off and checked it out with a ohm meter and everything checks out fine, maybe the code is because my CAI I installed, its home made. I replaced the CTS today and reset the computer, adjusted the TPS(fan trick), adjusted the timing, and everything to be good for 50 miles of driving... Give me a few more days and I will tell you if this fixed it or not.
- wyldside
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If she runs fine, then great! But if it starts crapping out again, it may be early signs that your distributor is crapping out. I did the MSD conversion so that I wouldn't have to worry about it ever again. Just another thing to keep in mind.
James Gosteli
X-Prez of MX-West
1992 Seal-Gray MX-3 GSR-ZE (KLZE 2.5L V6)![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
1992 White MX-3 GSR-ZE (KLZE 2.5L V6)
Worklog (Parting out)
1993 Blaze Red MX-3 GS - RIP![Crying or Very sad :cry:](./images/smilies/icon_cry.gif)
X-Prez of MX-West
1992 Seal-Gray MX-3 GSR-ZE (KLZE 2.5L V6)
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
1992 White MX-3 GSR-ZE (KLZE 2.5L V6)
![Sad :(](./images/smilies/icon_sad.gif)
1993 Blaze Red MX-3 GS - RIP
![Crying or Very sad :cry:](./images/smilies/icon_cry.gif)