Search found 4 matches

by sirocco44
November 22nd, 2020, 5:41 pm
Forum: CX-7 Tuning
Topic: overspeeding/overboosting turbo
Replies: 7
Views: 6738

Re: overspeeding/overboosting turbo

When you capture an event in a log, please log just that event. If you capture it several times make several logs. These are events that last a few lines, while looking for them in 5000 lines is not really easy. So from how this looks it seems that there is no boost control. WGDC is 0 and the load/...
by sirocco44
November 21st, 2020, 4:31 pm
Forum: CX-7 Tuning
Topic: overspeeding/overboosting turbo
Replies: 7
Views: 6738

Re: overspeeding/overboosting turbo

You will have to log at least RPM, Load, MAP, MAF g/s, throttle position, WGDC duty, fiel rail pressure, injector duty cycle and actual AFR to see the overboosting issue and now it's mitigated, but no parameter will tell you what is causing it. Thanks for all the insight. I captured a log that i th...
by sirocco44
November 8th, 2020, 3:07 pm
Forum: CX-7 Tuning
Topic: overspeeding/overboosting turbo
Replies: 7
Views: 6738

Re: overspeeding/overboosting turbo

No, the removed cat would not cause overboost. It would help/cause the turbo to spool faster and produce boost suner, but not fast enough for the boost control system not to react properly. You should check for issue in the boost control system (disconnected lines from the EBCS, stuck wastegate arm...
by sirocco44
October 17th, 2020, 5:22 pm
Forum: CX-7 Tuning
Topic: overspeeding/overboosting turbo
Replies: 7
Views: 6738

overspeeding/overboosting turbo

2007 Cx-7 FWD No mods Stock except for gutted cat (cat was melted after a faulty o2 sensor and removed) Currently on stock tune. Hello all, My cx-7 is over boosting. Looking to build a custom tune to fix my issue if that's possible. The psi hits 21.5 and the ecu triggers a fuel cut. I am assuming th...