Recently installed the 2JR FMIC on my car and the JBR Catch Can on my car and noticing a high idle issue that eventually lead to a CEL for P0507 (high idle RPM)
The FMIC I installed about 10 days ago, catch can about 3 weeks ago. Issue only started last night after work and car was idling at 1200 RPM on the stage 3 Cobb OTS tune
I reflashed it to Stage 1 OTS and the idle dropped to ~950-1050 RPM which is still high but not as high as on stage 3.
I'm really not familiar with turbos or engine tuning but thought it was strange that the results were different on stage 1 vs stage 3 at idle
I looked into it and found this thread on focusstorg about a user's experience with the JBR OCC so that's what I'm going to look into first, surprised that no one on any of the Fiesta ST forums had P0507 issues though so wanted to double check with you guys if you've seen this.
Could a loose intercooler hose (pre-throttle body) cause a high idle issue or is it strictly post throttle body?
I run the AP gauges and the boost pressure on both stage 1 and stage 3 at vacuum and on boost looked right (stage 3: -11 to 23.5 PSI) and (stage 1: -11 to 21 PSI)
AFR looks good for the most part, sometimes when letting off the throttle it will drop to around 12 for a split second
Gonna check the OCC first after work today but you guys think it's worthwhile checking the FMIC? Feeling lazy to re/re the bumper again...
The FMIC I installed about 10 days ago, catch can about 3 weeks ago. Issue only started last night after work and car was idling at 1200 RPM on the stage 3 Cobb OTS tune
I reflashed it to Stage 1 OTS and the idle dropped to ~950-1050 RPM which is still high but not as high as on stage 3.
I'm really not familiar with turbos or engine tuning but thought it was strange that the results were different on stage 1 vs stage 3 at idle
I looked into it and found this thread on focusstorg about a user's experience with the JBR OCC so that's what I'm going to look into first, surprised that no one on any of the Fiesta ST forums had P0507 issues though so wanted to double check with you guys if you've seen this.
Could a loose intercooler hose (pre-throttle body) cause a high idle issue or is it strictly post throttle body?
I run the AP gauges and the boost pressure on both stage 1 and stage 3 at vacuum and on boost looked right (stage 3: -11 to 23.5 PSI) and (stage 1: -11 to 21 PSI)
AFR looks good for the most part, sometimes when letting off the throttle it will drop to around 12 for a split second
Gonna check the OCC first after work today but you guys think it's worthwhile checking the FMIC? Feeling lazy to re/re the bumper again...