RUNNING ROUGH.IVE.TOOK TO AHOP THEY CANT FIGURE IT OUT EITHER

1990 Mazda Miata

Tiny

Reedbone

July, 8, 2012 AT 10:07 PM

I have a 90 mazda miata and it runs really rough like low idle around 250 rpms sometimes I can. Accelerate all way to floor and nothin happens it will still idle and I have to let it warm up for a lil while before I can raise the rpms to move it but when I go to move I have to raise the rpms to 4000 or it will try to shut off ive checked mass air flow meter and ive checked timing belt also check catalytic converter and idk what else I need help no to see ody I took to can fure it out and ive ch ecked ecu to see if it was ground out anything its not plz help

FOUND 4480 RELATED QUESTIONS

Running Rough

27 ANSWERS
34 IMAGES

Idles Rough/changed Ects

37 ANSWERS
3 IMAGES

4 Answers

Tiny

rasmataz

July, 8, 2012 AT 10:42 PM

Go to this walk thru link: http://www.2carpros.com/articles/engine-misfires-or-runs-rough

Tiny

Reedbone

July, 8, 2012 AT 11:11 PM

I just did and ive done almost everything it says onky think is I dont have a comprdoeasion teste anything else

Tiny

Reedbone

July, 9, 2012 AT 1:08 AM

I need help I dont know what to do anymore

Tiny

rasmataz

July, 9, 2012 AT 1:51 AM

Do you have a check engine light? If it can idle try checking the ignition timing and fuel pressure with a gauge if its within normal specs

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