K20.ek's Fuel Pressure Regulator Turbo B-Series question??
04-24-2019, 04:46 AM
#51
Honda-Tech Member
Thread Starter
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
Yea I’m goin to try to set an appointment on May 30th with Jason. Should have went to him in the first place but I couldn’t find a date I’m off for his schedule.
Also has anyone tuned with ImportExperts???
My original first tuner was lookin at my fuel gauge on my fuel filter and said “ your fpr doesn’t have a vacuum line on it and that’s why it’s leaning out”
it took me a min... I was like WTF... did he just say my fuel filter is my fpr..??? Still confused lol and I told him my fpr is on my fuel rail. Then he looked at it and said yes you need to upgrade to Aem fpr. Well I was telling him I’ve seen stock fpr hold up to 500whp. And I doubt my motor hasn’t even reached 250- 300whp yet untuned or barely tuned by him. So that’s where I’m at now. Oyyy vey!!!!
Well walbro255lph fuel pump and relay kit and aem fpr upgraded so there no excuse this shouldn’t hit a conservative 350-400whp.
but if you want his name just IM me and I’ll be glad to help you avoid him from tuning a Honda motor.
05-18-2019, 11:54 PM
#52
Honda-Tech Member
Thread Starter
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
Ok guys did some Dyno tuning with James Emmino and he is a very good tuner! My car runs smoother and pulls hard.
It made 300whp 270-290 torque ( didn’t really look at the torque but my buddy says the torque was up up that range ) on 10psi with vtec breaking up.
so here is the problem, vtec wasn’t engaging in the beginning, He found out the pin on the harness goin to the ecu was loose, so he fixed that and now vtec engages. So now vtec works but when he sets vtec in like 5500rpm it breaks up.... it wants to engage but it doesn’t fully lock on. Doesn’t matter where he sets it on it breaks up. I don’t know how to explain it good enough but it just like a vtec goin in and out. I’ll try to get a video tomorrow.
he says it could be something restricting exhaust flow to make the vtec to break up like that. I’m running a blox log manni and he suggest I change it out for tubular.
I’m not doubting his exterptise but I just don’t see how a log manni will make vtec break up like that wherever we set it at. It sounds like electrical or something or something like it blowing out the spark.
Oil pressure is good, solenoid engages, no breaks in the wiring. Everything meets the spec for the vtec to engage according to my tuner.
if any input or anybody had this problem please lmk.
It made 300whp 270-290 torque ( didn’t really look at the torque but my buddy says the torque was up up that range ) on 10psi with vtec breaking up.
so here is the problem, vtec wasn’t engaging in the beginning, He found out the pin on the harness goin to the ecu was loose, so he fixed that and now vtec engages. So now vtec works but when he sets vtec in like 5500rpm it breaks up.... it wants to engage but it doesn’t fully lock on. Doesn’t matter where he sets it on it breaks up. I don’t know how to explain it good enough but it just like a vtec goin in and out. I’ll try to get a video tomorrow.
he says it could be something restricting exhaust flow to make the vtec to break up like that. I’m running a blox log manni and he suggest I change it out for tubular.
I’m not doubting his exterptise but I just don’t see how a log manni will make vtec break up like that wherever we set it at. It sounds like electrical or something or something like it blowing out the spark.
Oil pressure is good, solenoid engages, no breaks in the wiring. Everything meets the spec for the vtec to engage according to my tuner.
if any input or anybody had this problem please lmk.
05-19-2019, 05:01 AM
#54
Honda-Tech Member
Thread Starter
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
Im goin to run open downpipe to see what that does. He says something restricting exhaust flow so I’ll do that today and report back
Last edited by K20.ek; 05-19-2019 at 06:01 AM.
05-19-2019, 05:27 AM
#55
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
Where is this tuner located? I've been speaking to a fella that travels. Joe Ti is his name, he's from out of Tennessee.. Memphis, if memory serves me proper. 4 hour drive for me but, he goes to Little Rock and Texarkana from time to time. Group rates and such.
05-19-2019, 06:21 AM
#57
05-19-2019, 07:45 AM
#58
Honda-Tech Member
Thread Starter
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
No luck on the open downpipe, vtec still breaking up.
Next step is to change back to my stock ls throttle body that I had on my na setup and see if it helps. I’m currently using my brothers old stock gsr tb.
Any other suggestions you guys have?
Next step is to change back to my stock ls throttle body that I had on my na setup and see if it helps. I’m currently using my brothers old stock gsr tb.
Any other suggestions you guys have?
05-19-2019, 08:16 AM
#59
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
Don't be offended by any of these questions - just trying to be thorough!
So if you disable VTEC and do a pull up to redline, no breaking up?
Have you pulled apart the VTEC solenoid to make sure it's not all gunked up?
Have you verified the TPS voltage at closed and WOT?
What are the specs of your ignition system? @turboLScrx was having some breaking up issues recently and he just found out that his MSD Blaster coil was giving him issues (see post here).
So if you disable VTEC and do a pull up to redline, no breaking up?
Have you pulled apart the VTEC solenoid to make sure it's not all gunked up?
Have you verified the TPS voltage at closed and WOT?
What are the specs of your ignition system? @turboLScrx was having some breaking up issues recently and he just found out that his MSD Blaster coil was giving him issues (see post here).
05-19-2019, 09:04 AM
#60
Honda-Tech Member
Thread Starter
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
Don't be offended by any of these questions - just trying to be thorough!
So if you disable VTEC and do a pull up to redline, no breaking up?
-Yes we did disabled vtec and no breaking up to redline 8k
Have you pulled apart the VTEC solenoid to make sure it's not all gunked up?
-Yes we pulled apart looked at the screen and not gunked up, just a little bit of debris but nothing bad. We even tried two other ecus and a different solenoid.
Have you verified the TPS voltage at closed and WOT?
-Have not done that yet but will try out my ls throttle body first then if it’s still the same I will check voltage.
What are the specs of your ignition system? @turboLScrx was having some breaking up issues recently and he just found out that his MSD Blaster coil was giving him issues (see post here).
So if you disable VTEC and do a pull up to redline, no breaking up?
-Yes we did disabled vtec and no breaking up to redline 8k
Have you pulled apart the VTEC solenoid to make sure it's not all gunked up?
-Yes we pulled apart looked at the screen and not gunked up, just a little bit of debris but nothing bad. We even tried two other ecus and a different solenoid.
Have you verified the TPS voltage at closed and WOT?
-Have not done that yet but will try out my ls throttle body first then if it’s still the same I will check voltage.
What are the specs of your ignition system? @turboLScrx was having some breaking up issues recently and he just found out that his MSD Blaster coil was giving him issues (see post here).
-new installed ngk spark plugs 7s gapped at .30
My stock vtec distributor has accel coil on it about 2-3 yrs old ran good with my na setup. Also new rotor and cap installed 2mths ago.
But I will say this, I’ve been having always problems with my distributor internal wiring all crack up wires, and one of them I had to solder together, so mayb I’m thinkin it’s probably giving out on high rpm hitting vtec.
its sounds like a static on an old school cable tv lol cutting on and off, then put that sound and an invidia exhaust system together 🤣 . Best way I can describe it.
05-19-2019, 10:01 AM
#62
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
Was the chassis pre-wired for VTEC, or did you have to run your own wiring? Maybe try temporarily bypassing the existing VTEC wiring and hard wire it to see if that fixes it?
The CYP, TDC, and CKP sensor wiring needs to be shielded, as these signals are susceptible to electrical interference - any chance the shielding is damaged or not grounded? Have you had to mess with the wiring for any of these?
Do you have another distributor, or at least another ICM you can try swapping in?
To me it's strange how it's VTEC dependent. Definitely seems like a wiring issue to me, but I'm not a tuner.
The CYP, TDC, and CKP sensor wiring needs to be shielded, as these signals are susceptible to electrical interference - any chance the shielding is damaged or not grounded? Have you had to mess with the wiring for any of these?
Do you have another distributor, or at least another ICM you can try swapping in?
To me it's strange how it's VTEC dependent. Definitely seems like a wiring issue to me, but I'm not a tuner.
05-19-2019, 03:41 PM
#63
Honda-Tech Member
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
My car was doing the same thing and it seemed to break up when vtec would engage, I was able to get that part cleared by moving some wiring inside the distributor around , but it still broke up over 68-7200 rpms. The breaking up was being caused by my distributor, I replaced the igniter and installed a stock Honda coil and cleaned up any possibilities of a bad wire inside the distributor and BAM! No more breaking up. Most break up issues are distributor related from what I’ve found
05-19-2019, 03:44 PM
#64
Honda-Tech Member
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
Was the chassis pre-wired for VTEC, or did you have to run your own wiring? Maybe try temporarily bypassing the existing VTEC wiring and hard wire it to see if that fixes it?
The CYP, TDC, and CKP sensor wiring needs to be shielded, as these signals are susceptible to electrical interference - any chance the shielding is damaged or not grounded? Have you had to mess with the wiring for any of these?
Do you have another distributor, or at least another ICM you can try swapping in?
To me it's strange how it's VTEC dependent. Definitely seems like a wiring issue to me, but I'm not a tuner.
The CYP, TDC, and CKP sensor wiring needs to be shielded, as these signals are susceptible to electrical interference - any chance the shielding is damaged or not grounded? Have you had to mess with the wiring for any of these?
Do you have another distributor, or at least another ICM you can try swapping in?
To me it's strange how it's VTEC dependent. Definitely seems like a wiring issue to me, but I'm not a tuner.
I think it has to do with the load on the motor, I think some arching might happen when put under a load .
05-20-2019, 07:33 AM
#65
Honda-Tech Member
Thread Starter
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
Was the chassis pre-wired for VTEC, or did you have to run your own wiring? Maybe try temporarily bypassing the existing VTEC wiring and hard wire it to see if that fixes it?
-Yes the car was prewired from previous owner.
The CYP, TDC, and CKP sensor wiring needs to be shielded, as these signals are susceptible to electrical interference - any chance the shielding is damaged or not grounded? Have you had to mess with the wiring for any of these?
-No I did not mess with any I’ll check to see if any is damage
Do you have another distributor, or at least another ICM you can try swapping in?
- in the process of trying to find another distributor to try, but we did try swapping coil out but nothing.
I
To me it's strange how it's VTEC dependent. Definitely seems like a wiring issue to me, but I'm not a tuner.
-Yes the car was prewired from previous owner.
The CYP, TDC, and CKP sensor wiring needs to be shielded, as these signals are susceptible to electrical interference - any chance the shielding is damaged or not grounded? Have you had to mess with the wiring for any of these?
-No I did not mess with any I’ll check to see if any is damage
Do you have another distributor, or at least another ICM you can try swapping in?
- in the process of trying to find another distributor to try, but we did try swapping coil out but nothing.
I
To me it's strange how it's VTEC dependent. Definitely seems like a wiring issue to me, but I'm not a tuner.
05-20-2019, 07:35 AM
#66
Honda-Tech Member
Thread Starter
Re: K20.ek's Fuel Pressure Regulator Turbo B-Series question??
My car was doing the same thing and it seemed to break up when vtec would engage, I was able to get that part cleared by moving some wiring inside the distributor around , but it still broke up over 68-7200 rpms. The breaking up was being caused by my distributor, I replaced the igniter and installed a stock Honda coil and cleaned up any possibilities of a bad wire inside the distributor and BAM! No more breaking up. Most break up issues are distributor related from what I’ve found
When I do find one I’ll give update
05-24-2019, 07:46 AM
#69
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