NoPistons -Mazda Rx7 & Rx8 Rotary Forum

NoPistons -Mazda Rx7 & Rx8 Rotary Forum (https://www.nopistons.com/)
-   3rd Generation Specific (https://www.nopistons.com/3rd-generation-specific-18/)
-   -   Fd Is Running Funny (https://www.nopistons.com/3rd-generation-specific-18/fd-running-funny-29133/)

Danno 11-22-2003 02:28 PM

It is running rough. It is running like bub bub bub. lik the rpms go down and then go back up. I did a compression test and it seems fine. what else could be wrong?

Danno 11-22-2003 02:30 PM

I am getting alot of smoke from the exhaust.

Fd3BOOST 11-22-2003 03:09 PM

Are your plugs good? Sounds like your getting too much fuel. Make any fuel adjustments lately?

amp 11-22-2003 05:06 PM

what range psi deems seems fine..

i gather the plugs were inspected when the compression test was done...

FikseRxSeven 11-22-2003 05:40 PM

loose vac lines or bad wires would make the idle go bub bub bub

Danno 11-22-2003 06:55 PM

The one vac line from the 1st solinoid on the rack is off. I broke the nipple off of it. How much $ are those solenoids? Would that cause the problem. That line goes to a one way check valve then into the TB.

IGY 11-22-2003 07:02 PM

In your other post you said that it didn't start going anywhere until 4000 rpm's and it smoked. Pull the intake pipe off the front turbo and check to see if it is hard to spin or locked up. The excessive back pressure from a siezed turbo will cause the crap idle, and the turbo will blow oil like it's cool also.

Danno 11-23-2003 01:34 AM

Cool thats some Good info IGY.!! I had it running today though and I could hear the turbos spool and then the BOV goes off as normal. I am going to check the turbos anyway. I need to fix my vaclines and then if I still have any probs them i am back to the drawing board. Thanks.

FikseRxSeven 11-23-2003 01:39 PM

find someone that is switchin over to singe.... there are a few people in the other forum that are doin that..... if not, pm fd3boost


All times are GMT -5. The time now is 02:45 AM.


© 2024 MH Sub I, LLC dba Internet Brands