i can't lean it out 1 Attachment(s) this is my setup: it's a 1986 rx7 swaped with a gen 3, 5.3, 224/224 .581 .581 cam and 625 springs 78mm turbo 80lb Siemens injectors @58psi dual 255 fuel pumps turbo 400 transmission 01 ecu 3 bar gm sensor and all that stuff to run speed density, I'm not running o2 sensors but I do have a AEM wideband,here is log it looks like it doesn't matter what i do, I can't lean it out. and if I put it in gear, it will go lean instantly and tries to die. this is my first time using hp tuners and i try to ask questions on the hp tuners forum but it looks like everyone is to good to help https://ls1tech.com/forums/attachmen...1&d=1470600962 |
1 Attachment(s) here is the tune |
i'm not on my hp tuners laptop so i cant see your tune or log but when i had similar issues i tried a series of suggestions set my IAC/TPS to get IAC counts around 50 at warm idle, it may take a couple tries the how to on the sloppy mechanics wiki is great next i made sure I had forced open loop by raising the closed loop enable to 285*F then I verified my fuel pressure at the rail and scaled my injectors accordingly next I played with my VE until I could get it to idle at 14.7 afr ----I did a blanket factor of 10% (multiply the whole table by 1.1) to get it richer. It still needs lots of work, but it's some stuff to try. |
I can't get the link to the tune file to open. |
2 Attachment(s) how about now ? |
For some reason ain't working thats just my bad luck:) I can email it to you if u want |
If it's a GM ecu, I'm pretty sure you will need o2 sensors. |
Originally Posted by dw456post
(Post 19351553)
If it's a GM ecu, I'm pretty sure you will need o2 sensors. |
Originally Posted by gametech
(Post 19351293)
I can't get the link to the tune file to open. |
Some injectors have a minimum on-time, usually around 1ms or so. If you try to go below it, the injector might not open, or open erratically/not nearly enough, and the engine will try to die. The bandaids are: reduce fuel pressure raise engine idle RPM the real fix is to use a higher resolution injector |
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