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Old 04-03-2013, 09:50 PM   #26
danger1138
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I think the front o2's limitation is 11.2 so if hes getting a reading of 11.6 its still a bit lean
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Old 04-05-2013, 11:17 AM   #27
ebonyRx
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Correction it is 11.2 and i put another fpr in the car today . Still no change
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Old 04-05-2013, 12:53 PM   #28
ogboot
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Quote:
Originally Posted by ebonyRx View Post
Correction it is 11.2 and i put another fpr in the car today . Still no change
If the front o2 reading is bottoming out at 11.2 then you're likely richer than that.
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Old 04-05-2013, 01:12 PM   #29
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Fuel pressure wot is 25psi while my buddies is 70 so im replacing the fp . Will post back my results
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Old 04-05-2013, 01:38 PM   #30
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Quote:
Originally Posted by ogboot View Post

If the front o2 reading is bottoming out at 11.2 then you're likely richer than that.
My thoughts exactly..
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Old 04-05-2013, 08:22 PM   #31
ebonyRx
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New walbro 255 installed . No change still breaking up -_____-
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Old 04-06-2013, 05:45 PM   #32
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Car seems to run good for a 3rd gear pull than i made another pass and Another flashing cel on cylinder 3 and 4 . I cant figure this out
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Old 04-06-2013, 07:29 PM   #33
quazimoto
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Change the FPR. Also log the fuel ECM output. Sometimes they do go bad.

Last edited by quazimoto; 04-06-2013 at 07:35 PM.
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Old 04-07-2013, 11:51 AM   #34
ebonyRx
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I changed the fpr off my buddies 02 wrx "same setup as me " and his ran great . Still didn't change anything . How to do log the ecm output ?
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Old 04-07-2013, 02:10 PM   #35
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Originally Posted by ebonyRx View Post
Hey guys . I recently had a cylinder 2 missfire i put a new maf sensor "denso" in and put a new coil pack on #2 its off brand i believe i also put 1step colder plugs in aswell. I have ran all the fuel out and ran fuel system cleaner . What else could be causing this ? Any help is greatly appreciated
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I replaced all 4 with colder plugs .. Car has 110,000 miles . Mods are full exhaust cobb ots tune vf34 turbo . Gsp inlet and afta maf . Rc550 injectors . Turbo xs fmic . Just had fuel lines replaced at Subaru last month and replaced the pcv valve the other day . Once it hits over 16psi the car staring breaking up " popping and not running or pulling smooth " hope that is a good description . I sprayed brake cleaner around all the vac hoses and tb and ic boots while the car was idling and the rpm didnt change .
Do u only have an ots map for your setup or did u get a protune?
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Old 04-07-2013, 08:23 PM   #36
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Only run ots. Maps . Ive tried both vf34 and vf39
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Old 04-07-2013, 08:43 PM   #37
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Quote:
Originally Posted by ebonyRx View Post
Only run ots. Maps . Ive tried both vf34 and vf39
ots maps are total garbage

get rid of them or get rid of the motor
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Old 04-07-2013, 08:56 PM   #38
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Only run ots. Maps . Ive tried both vf34 and vf39
Get a protune... more tailored for your setup than some generic map. I bet that's why you having issues
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Old 04-08-2013, 10:17 AM   #39
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That was the plan but im waiting to get my 18g back before i get dyno tuned . And total garbage ? I guess 12.50 at 108 mph isnt good for a base map . Regardless i dont think its the tune itself . You guys think its possible it skipped timing ?
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Old 04-08-2013, 11:16 AM   #40
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What are the map requirements? Does your parts list match up? I'd say its the tune.
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Old 04-08-2013, 11:18 AM   #41
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The tune is for a vf34 with a turbo back exhaust . Sti pinks . Only difference is i have rc 550s
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Old 04-08-2013, 01:21 PM   #42
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Quote:
Originally Posted by ebonyRx View Post
The tune is for a vf34 with a turbo back exhaust . Sti pinks . Only difference is i have rc 550s
And what is the latency value for those injectors? You can't just install whatever injectors you want just because the size/scaling is close. There is a reason the map calls for "pinks" and not just any injectors with the same cc.
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Old 04-08-2013, 01:43 PM   #43
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Originally Posted by ebonyRx View Post
That was the plan but im waiting to get my 18g back before i get dyno tuned . And total garbage ? I guess 12.50 at 108 mph isnt good for a base map . Regardless i dont think its the tune itself . You guys think its possible it skipped timing ?
I'd be careful racing with a generic map and what seems to be the wrong injectors than what is required. Pritune that thing already
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Old 04-16-2013, 03:46 PM   #44
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Update : took the car to agile auto in fallston MD . The reason for the breakup issue was the dielectric grease i used ... They cleaned my coil packs out and the car runs fine .
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Old 04-17-2013, 12:28 AM   #45
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it wasnt dielectric grease if it caused issues

and ya gonna have more and bigger issues from here on out id bet
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