Engine wil not stay running
Engine wil not stay running
Maybe someone can give me some help. Just dropped a ZE in my 92 Mazda Mx-3 gs with k8 ecu, starts fine some times but then it will start to idle up and down like its about to die than go back up to normal idle then die back down. Then I'll try to drive the car and as soon as i take my foot of the gas and the rpm drops to idle it will usually die. Can anyone give me some idea on what I should look for? Has anyone had this problem before?
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PATDIESEL
- Senior Member
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Yes it is probably the most common problem with a MX-3.
It can be one of two problems.
1. a vaccum leak. To fix, just listen for a whistle or whine and fix the offending hose or bad seal.
2. reset the TPS. I think there is a FAQ in the V6 section that tells how to reset the TPS.
It can be one of two problems.
1. a vaccum leak. To fix, just listen for a whistle or whine and fix the offending hose or bad seal.
2. reset the TPS. I think there is a FAQ in the V6 section that tells how to reset the TPS.
ZE -strait neck,headers,2.5 exhaust,pheno spacers,lower cross member,GC coils,MS struts,Brembo slotted rotors,filled MS mounts,SS brake/clutch lines, CAI,to rear bat reloc,Hella headlamps,Hella DE fogs 180WHP
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MX3 GSR for dummies
- Regular Member
- Posts: 466
- Joined: October 28th, 2005, 9:00 am
- Location: GHETTOVALE, Ontario
Just save yurself more headackes and get a KL31 ECU. I went through all these types of issues chasing all sorts of quirky issues for 2 years and ended with an egine trying to kill itself by running absolutely rich and pouring out black smoke.....then I finally got the 31 ecu and it was like night and day. Runs great now! Anyways, try re-setting the ecu and TB adjustment screw. I found that to at least stablize the issue you are having now.
If at first you don't succeed....it never happened
94 mx3 GS w/ KLZE, KL31 ECU, clutchmaster stage 3, cross drilled rotors, Custom ram air intake, Custom exhaust, Toyo tires, 250LPH fuel pump, Modified Distributor, Upgraded Wiring etc, external HEI, Full Body Drift kit and freshly painted Grey. Interior neon accents and much more in progress
94 mx3 GS w/ KLZE, KL31 ECU, clutchmaster stage 3, cross drilled rotors, Custom ram air intake, Custom exhaust, Toyo tires, 250LPH fuel pump, Modified Distributor, Upgraded Wiring etc, external HEI, Full Body Drift kit and freshly painted Grey. Interior neon accents and much more in progress
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XxantwawnxX
- Regular Member
- Posts: 1281
- Joined: January 8th, 2005, 11:08 pm
- Location: Newportnews VA
K8 ecu with K8 VAF works fine with the ze, been running it for yyeeeaaaaarss, only thing is it may be a lil rich. ECU has nothing to do with ur problem im certain. TPS...VAC Leak or something else...check codes if the Check light came on.
MX3 for dummies im not saying your wrong but i never had richness probs as bad as yours. Could be cause our set ups might be slightly diff
Guess im jsut trying to say that you can get a nice stable idle with the k8 ecu. I ran 14.2 with the k8 ecu and vaf . But be aware ur gas milage will go down.
But now i have MSnS : P no more K8 ecu i love it cause i still can check for codes too.
MX3 for dummies im not saying your wrong but i never had richness probs as bad as yours. Could be cause our set ups might be slightly diff
Guess im jsut trying to say that you can get a nice stable idle with the k8 ecu. I ran 14.2 with the k8 ecu and vaf . But be aware ur gas milage will go down.
But now i have MSnS : P no more K8 ecu i love it cause i still can check for codes too.
* * * * * * 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.