let off gas and rpms down to 1250 and car almost cuts of

dj inferno · Post by **dj inferno** » February 18th, 2004, 11:16 pm

when im drivning and i let of my gas, the rpms go down to 1250 (right around the line above 1) at that point it ALMSOT cuts off... then it goes back up to around 1750 where it should idle or atleast sounds good lol it hasn't cut off yet... but i think its getting worst... ne help would be nice...thx

MX3-Freak · Post by **MX3-Freak** » February 18th, 2004, 11:43 pm

Hmmmm, well the normal idle speed for all 4cyls is 750 rpms (mine idles at around 550 and it's fine). If your engine is dying at 1200 you either have some type of air restriction (clogged air filter?) fuel restirction (fuel filter, fuel injectors?). Or it could be your engine is really idling lower then normal and you need ot adjust your TB air regulator. Which means your tach is way off and probibly want a new set up... take your pick I guess.

Good Luck

hondah8er13 · Post by **hondah8er13** » February 19th, 2004, 3:26 am

Like freak said it could be many different things, did this happen all of a sudden or what? also have you opened the hood? listen for a vacum leak any plugs off just inspect it, chances are if it happened all of a sudden it is not your filter. good luck

hondah8er13 · Post by **hondah8er13** » February 19th, 2004, 3:28 am

oh yeah also that is a really high rpm to idle at! I idle at 750 thats about factory settings, the best thing if your not sure what to do take it in somewhere it is probably something simple

dj inferno · Post by **dj inferno** » February 28th, 2004, 8:59 pm

my bad... i was really tired when i wrote that lol... this is what it should say...
when im drivning and i let of my gas, the rpms go down to 250 (right around the line above 0) at that point it ALMOST cuts off... then it goes back up to around 600 where it should idle or atleast sounds good lol it hasn't cut off yet... but i think its getting worst... ne help would be nice...thx

MX3-Freak · Post by **MX3-Freak** » February 29th, 2004, 1:08 am

Have you tried the breather filter on the PCV? Sounds to me like its similar to the idle problem that these engines cars have...

custommx3gtx · Post by **custommx3gtx** » February 29th, 2004, 1:32 am

i had the same problem with mine but it would drop lower than 500 rpm's. i took it to mazda and it took them a while to find the problem. it turned out being a problem with my maf so i changed it and then it ran fine

dj inferno · Post by **dj inferno** » February 29th, 2004, 7:22 pm

i had the same problem with mine but it would drop lower than 500 rpm's. i took it to mazda and it took them a while to find the problem. it turned out being a problem with my maf so i changed it and then it ran fine

whats a maf?

custommx3gtx · Post by **custommx3gtx** » February 29th, 2004, 7:55 pm

maf is the mass air flow just after the intake

Joey's mx · Post by **Joey's mx** » April 9th, 2004, 8:15 pm

But if it was the maf wouldnt the car stull when you you give it gas??

boomer71283 · Post by **boomer71283** » April 27th, 2004, 12:08 pm

its not just the maf its the air intake temperature sensor inside the maf. its very hard to find a maf that doesnt have a blown temp sensor ive tried and im not going to buy a new one either. so ive just been dealing with it til i can find one.

MX-3.com

let off gas and rpms down to 1250 and car almost cuts of

let off gas and rpms down to 1250 and car almost cuts of

Re: let off gas and rpms down to 1250 and car almost cuts of

Re: let off gas and rpms down to 1250 and car almost cuts of

Re: let off gas and rpms down to 1250 and car almost cuts of

Re: let off gas and rpms down to 1250 and car almost cuts of

Re: let off gas and rpms down to 1250 and car almost cuts of

Re: let off gas and rpms down to 1250 and car almost cuts of

Re: let off gas and rpms down to 1250 and car almost cuts of

Re: let off gas and rpms down to 1250 and car almost cuts of

Re: let off gas and rpms down to 1250 and car almost cuts of

Re: let off gas and rpms down to 1250 and car almost cuts of