Europe Forum Area just for 8 owners across the pond.

RX8 stall at idle and run too rich

Old 09-12-2016, 09:12 AM
New Member
Thread Starter
Join Date: Aug 2015
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
RX8 stall at idle and run too rich

Hello evereyone.

I post my problem here because Iíve search for weeks now and canít figure what my problem is.
Lets start with the beginning of the story.
I had to rebuild my engine, I change it all and streetported it. I put everything back in place and start the engine. The engine start and keep stalling. Rookie mistake, I forgot to reset the PCm for the shaft sensor. It was better but still stall at idle, rough idle. Another rookie mistake was found, I inverted fuel injectors wires. Still no resolve the problemÖ
I know the PCM need some time to learn how to fuel the car so I decided to drive it around the block but it show me another problem, everytime I push the gas pedal it struggle for 1-2 sec and then it goes well (Iíll try to upload a video to show this soon), but everytime I get off my foot and put it back on the pedal, it will do that.
Driving it comes also with a lot of backfire. I check the plugs and theyíre black, so itís sure, the car run too rich!

I looked over vaccum leakage, found nothing, check the ignition (D585 coils) theyíre good, I took my compression, 100km after the rebuild and I got 105-107PSI for all faces and front and rear, so not really great but not bad at all I guess!
So now I donít know where to look up to find the problem.. For me it may be a sensor trouble, may be the MAF or the throttle body, Iím waiting for remplacement parts but Iím scared it wonít be that..

About my setup : D585 ignition coils and wires, NGK plugs. K&N air filter, and a full exhaust from toyosport (decat pipe). I donít change those during the rebuild. I just add a oil pressure regulator during the rebuild.

If anyone have a clue for me to solve this problem, Iíll take it!

Thank you in advance and sorry for the bad English!
Mc2g is offline  
Related Topics
Thread Starter
Last Post
New Member Forum
08-23-2016 10:43 AM
New Member Forum
08-14-2016 09:14 AM
RX-8 Parts For Sale/Wanted
07-27-2016 02:44 PM
Series I Trouble Shooting
07-15-2016 02:59 PM
Series I Trouble Shooting
07-15-2016 12:34 PM

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: RX8 stall at idle and run too rich

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.