TwinTurbo.NET: Nissan 300ZX forum - idle falls after rev
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Subject idle falls after rev
     
Posted by chinaoreo on April 29, 2019 at 10:27 AM
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Message ok so i know this dead horse has been beat over and over again and ive scoured the web but still cant find a fix. so im reaching out to the z32 community..here goes..

i just rebuilt the motor and everything was fine until my batt went dead..hooked charger up and started and now my idle is falling/stumbling after revving the engine. its drops down to 200 or so rpm then bounces right back up..it might yoyo a couple times before it settles at normal idle again. other than that theres in no problems or driveability issues

things i have already done or know:

code 55
NO vaccuum leaks or boost leaks
all conectors and plugs are squeaky clean with electrical grease
aac/iacv is clean and working fine
tps is set to 4.4 and working/tested fine. hard idle is working fine
timing is on 15*
compression is good..fresh rebuild
hittin on all 6
egr..aiv..prvr all deleted
no blow off valves. recirc valves are working fine
injectors are freshly cleaned and fine
mafs are working fine.. silen dual setup

im now at a loss and any help would be greatly appreciated..thanks..!

     
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