Hello,
Trying to work all the bugs out of this '92 mustang EFI conversion in my '66 stang, it runs - now it's just a matter of getting it to run just right. It seems to idle fine, I'm unsure of what cam is in there but it seems mild because i have 14.5hg of vacuum and a lumpy sound to it. (8.9:1 compression, ECM is programmed for the non-HO firing order which this cam is)
When I give it mid throttle it feels real hesitant and then if I give it WOT it backfires.
I don't have money to be throwing at this thing in parts, and I'm more than interested to learn how to diagnose and fix such a problem with an EEC tuner like my quarterhorse. I just don't know how to interpret the data to find the cause.
I'm leaning on fuel injectors being old and gummed up. But I'd like to ensure this is it since they are costly to replace. However I am curious if the $25 injector service kit on fordfuelinjection.com would do the trick if my injectors are truly the cause of the hesitation and backfire.
I've checked plug firing order = okay. Timing is at 11º, at 14º it was throwing codes 41 & 91, so I backed it down to 11º, reset ECM and drove around for a minute and those two codes did not return.
NO EGR, thermactor, CANP = all disabled via the quarterhorse using Binary Editor from Clint Garrity. (very impressive program might I add!)
499.1697115_____204__196__33.58__17.79__13.9______13.9____3.53__3.57__0.0025__0.0025__1052__16.8___0.89
499.233742______204__196__33.58__17.79__13.9______13.9____3.53__3.57__0.0025__0.0025__1052__16.8___0.89
499.2840207_____204__196__33.58__17.79__13.9______13.9____3.53__3.57__0.0025__0.0025__1052__16.8___0.89
499.3739799_____204__196__33.27__17.91__13.9______13.9____3.58__3.58__0.0025__0.0025__1032__20.5___0.89
ET_____________ACT__ECT__MAF___LOAD__LAMBSE1_LAMBSE2_PW1__PW2__HEGO1__HEGO2__RPM__SPARK__TP
This is at idle of 1000 rpms. I did a KOEO code check and I'm getting 15 and 95, then a 10. I did some research here and on the web and I cannot find a code 10.
Code 15: I am going to check the PIN1 for power...checking tomorrow.
Code 95: I have to get a connector for the VSS sensor... in process.
Code 10: ??
Can you help me diagnose this hesitation issue?
Trying to work all the bugs out of this '92 mustang EFI conversion in my '66 stang, it runs - now it's just a matter of getting it to run just right. It seems to idle fine, I'm unsure of what cam is in there but it seems mild because i have 14.5hg of vacuum and a lumpy sound to it. (8.9:1 compression, ECM is programmed for the non-HO firing order which this cam is)
When I give it mid throttle it feels real hesitant and then if I give it WOT it backfires.
I don't have money to be throwing at this thing in parts, and I'm more than interested to learn how to diagnose and fix such a problem with an EEC tuner like my quarterhorse. I just don't know how to interpret the data to find the cause.
I'm leaning on fuel injectors being old and gummed up. But I'd like to ensure this is it since they are costly to replace. However I am curious if the $25 injector service kit on fordfuelinjection.com would do the trick if my injectors are truly the cause of the hesitation and backfire.
I've checked plug firing order = okay. Timing is at 11º, at 14º it was throwing codes 41 & 91, so I backed it down to 11º, reset ECM and drove around for a minute and those two codes did not return.
NO EGR, thermactor, CANP = all disabled via the quarterhorse using Binary Editor from Clint Garrity. (very impressive program might I add!)
499.1697115_____204__196__33.58__17.79__13.9______13.9____3.53__3.57__0.0025__0.0025__1052__16.8___0.89
499.233742______204__196__33.58__17.79__13.9______13.9____3.53__3.57__0.0025__0.0025__1052__16.8___0.89
499.2840207_____204__196__33.58__17.79__13.9______13.9____3.53__3.57__0.0025__0.0025__1052__16.8___0.89
499.3739799_____204__196__33.27__17.91__13.9______13.9____3.58__3.58__0.0025__0.0025__1032__20.5___0.89
ET_____________ACT__ECT__MAF___LOAD__LAMBSE1_LAMBSE2_PW1__PW2__HEGO1__HEGO2__RPM__SPARK__TP
This is at idle of 1000 rpms. I did a KOEO code check and I'm getting 15 and 95, then a 10. I did some research here and on the web and I cannot find a code 10.
Code 15: I am going to check the PIN1 for power...checking tomorrow.
Code 95: I have to get a connector for the VSS sensor... in process.
Code 10: ??
Can you help me diagnose this hesitation issue?