Topic: stupid issue.... I CAN'T FIGURE THE BITCH OUT (Read 6485 times)

d-rail · « **on:** May 05, 2009, 07:38:26 AM »

I got an issue with my car that's driving me mental. I can't figure this stupid shit out. It's a d16z6 with nothing but aftermarket guts but I have a stock ECU on it. It will not rev past 4600 RPM now. I can't figure it out. Hears a video of it. It doesn't sound like it but it's actually bouncing off a rev limiter here.

If you have any ideas PM me or PM me and I'll give you a number a reach me on
http://s700.photobucket.com/albums/ww2/D-Rail86/?action=view&current=0505090449.flv

Dweezil · « **Reply #1 on:** May 05, 2009, 09:41:32 AM »

Any CEL's?

DmC · « **Reply #2 on:** May 05, 2009, 01:54:54 PM »

limpmode bad ecu or wiring harness problems

chris · « **Reply #3 on:** May 05, 2009, 04:48:56 PM »

try another ecu

Conceptz-X · « **Reply #4 on:** May 05, 2009, 08:31:25 PM »

Injector grounds? Bought my 83 supra doing some shit like that for $300, turned out the injector ground was loose

d-rail · « **Reply #5 on:** May 05, 2009, 09:18:15 PM »

Theirs no check engine light and the car runs great till about 5100 rpm then it hits a rev limiter I've changed the ecu in it before with the same results.

chris · « **Reply #6 on:** May 05, 2009, 09:40:24 PM »

Maybe swap another dist on the car.

Zeniceguycrx · « **Reply #7 on:** May 05, 2009, 09:45:41 PM »

I had the problem when I did the DPFI-MPFI swap, turned out to be a bad ECU
I would also look at the TPS sensor and wireing

d-rail · « **Reply #8 on:** May 05, 2009, 09:57:36 PM »

When I get back from Ft. Gordon, Georgia I'm gonna have my buddy bring his distributor, ecu, and wiring harness and start going through the thing. Thanks for the suggestions guys

chris · « **Reply #9 on:** May 05, 2009, 10:00:10 PM »

Also clean all your grounds

d-rail · « **Reply #10 on:** May 05, 2009, 11:07:10 PM »

I think all my grounds are new. I've replaced 3 for sure but I haven't touched the ones on my thermostat yet.

chris · « **Reply #11 on:** May 05, 2009, 11:24:48 PM »

thats the one that causes wierd problems with the ecu and blows fuses etc

d-rail · « **Reply #12 on:** May 05, 2009, 11:35:53 PM »

Alright Thanks. I'll be sure to check that out whenever I get home Thursday night.

chris · « **Reply #13 on:** May 06, 2009, 09:53:45 PM »

also make sure you have correct fuel pressure. if you have a walbro tank it will want atleast a 1/4 tank of gas or it will run like ass or not even run/start

I hope you have a fuel pressure gauge they are cheap and a great tool to verify you have correct pressure etc. Nice little tuning tool also if you max out your injectors on stock pressure and you have an adjustable fpr crank that bitch up and vroom mo powa

d-rail · « **Reply #14 on:** May 06, 2009, 10:10:34 PM »

I haven't changed out the fuel pumps yet. Been wanting to do one thing at a time and get things figured out before i start pulling more shit apart

chris · « **Reply #15 on:** May 06, 2009, 10:40:15 PM »

check your fuel pressure

d-rail · « **Reply #16 on:** May 07, 2009, 10:22:04 PM »

put fuel pressure gauge on checked ok, changed ecu, distributor, engine harness which sucked doing but still had same issue. WHAT THE HELL?!!!

BoostForLife · « **Reply #17 on:** May 07, 2009, 11:08:37 PM »

have you checked if the timing belt is on right?

chris · « **Reply #18 on:** May 07, 2009, 11:10:33 PM »

get an adjustable fpr Im sure someone has one laying around and crank the fucker up to like 60 psi

report back

88dx · « **Reply #19 on:** May 07, 2009, 11:30:29 PM »

Quote from: chris M on May 07, 2009, 11:10:33 PM

get an adjustable fpr Im sure someone has one laying around and crank the fucker up to like 60 psi

report back

I have a Modified Stock FPR Id sell :yes:

d-rail · « **Reply #20 on:** May 08, 2009, 01:05:56 AM »

I've already tried that and i cranked it to 65lbs and all it did was run pig rich

BoostForLife · « **Reply #21 on:** May 08, 2009, 01:31:38 AM »

Quote from: BoostForLife on May 07, 2009, 11:08:37 PM

have you checked if the timing belt is on right?

98vtec · « **Reply #22 on:** May 08, 2009, 01:51:56 AM »

the ecu is telling you "wtf is going on!!?!!?"

DmC · « **Reply #23 on:** May 08, 2009, 01:53:57 PM »

bad ect sensor?

d-rail · « **Reply #24 on:** May 08, 2009, 10:11:13 PM »

Quote from: 98vtec on May 08, 2009, 01:51:56 AM

the ecu is telling you "wtf is going on!!?!!?"

ECU is not throwing any codes. Put my ECU on my buddies car and it ran fine. I'm gonna switch all my sensors out on my intake whenever I put my ported intake and throttle body on it tomorrow.

DmC · « **Reply #25 on:** May 08, 2009, 11:23:42 PM »

Dude change the ect to it's one of the few sensors that can cause that shit.

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Author Topic: stupid issue.... I CAN'T FIGURE THE BITCH OUT (Read 6485 times)

chris

chris

chris

chris

chris

chris

BoostForLife

chris

BoostForLife