Rarely hit Redline

Petrucci914 · Post by **Petrucci914** » Thu Mar 27, 2008 10:03 am

Do you guys hit Redline frequently and easily? It's really hard for me. I've probably only hit it like 2 times since I owned the car. I can get up to about 5 grand easily but that's it. If this is abnormal, anything I should look at? New MAF?

northvibe · Post by **northvibe** » Thu Mar 27, 2008 10:06 am

is your engine fully warmed up?

Petrucci914 · Post by **Petrucci914** » Thu Mar 27, 2008 10:08 am

Yes. All warmed up. Although, my car seems faster when it's colder (lower SC temp, I suppose).

ajflan · Post by **ajflan** » Thu Mar 27, 2008 10:15 am

I can get mine to redline easy. But im not f/i. I don't know if that has anything to do with it.

coldmm803 · Post by **coldmm803** » Thu Mar 27, 2008 10:17 am

i'm with aj, i hit redline with no problems. i'm bone stock

northvibe · Post by **northvibe** » Thu Mar 27, 2008 10:41 am

do you push the pedal all the way down?

Petrucci914 · Post by **Petrucci914** » Thu Mar 27, 2008 10:44 am

When I'm trying to hit Redline.....yes.

ITcar · Post by **ITcar** » Thu Mar 27, 2008 10:51 am

i rarely do, only because by the time i get there im already at more than 80mph

CountryVibe · Post by **CountryVibe** » Thu Mar 27, 2008 10:55 am

What does it do, cut off or just keep climbing slowly?

Petrucci914 · Post by **Petrucci914** » Thu Mar 27, 2008 11:06 am

Usually shifts by 5 grand. My car is almost always under 4 grand.

DiveNut · Post by **DiveNut** » Thu Mar 27, 2008 12:11 pm

Hit it any time I keep my foot in it. Pulls right up to 6500-6700 RPM before it shifts up to the next gear. You should definitely be pulling the same. Maybe you're experiencing a problem with your ECU or Piggy Back?

kevera · Post by **kevera** » Thu Mar 27, 2008 7:42 pm

I try to stay out of the redline,but I can hit it.Ever since you installed yours,I remember you saying you didn't notice a huge difference with the s/c.So,I'd say somethings not right.

northvibe · Post by **northvibe** » Thu Mar 27, 2008 9:34 pm

Quote, originally posted by kevera Â»I try to stay out of the redline,but I can hit it.Ever since you installed yours,I remember you saying you didn't notice a huge difference with the s/c.So,I'd say somethings not right.hmmm yes... Can you try someone elses ecu? I guess that would be the first thing to check if it was the ecu. go visit lancer

Petrucci914 · Post by **Petrucci914** » Thu Mar 27, 2008 10:36 pm

I stepped on it this morning and hit 6k.........no redline, though. I'd like to replace the TRD ecu with the Unichip. Maybe that'll come quicker than I expected. Been trying to pay off things in preparation for getting a house or something, so we'll see.

lovemyraffe · Post by **lovemyraffe** » Thu Mar 27, 2008 11:11 pm

I hit redline all the time once the car is warm.

kevera · Post by **kevera** » Thu Mar 27, 2008 11:49 pm

How much boost are you hitting?

Petrucci914 · Post by **Petrucci914** » Thu Mar 27, 2008 11:53 pm

On WOT......about 7.5-8. Average around 5.

kevera · Post by **kevera** » Fri Mar 28, 2008 12:22 am

Now,the TRD piggy doesn't control the rev limit.I would say it's a mechanical problem or the main ECU that's not letting you achieve the 6800 rpm redline on the 1zz.I wish I could be of more help,but I haven't heard of this kind of problem before.That's why I asked what boost you were running to see if you had a leak or not.

Petrucci914 · Post by **Petrucci914** » Fri Mar 28, 2008 12:39 am

Quote, originally posted by kevera Â»Now,the TRD piggy doesn't control the rev limit.I would say it's a mechanical problem or the main ECU that's not letting you achieve the 6500 rpm redline on the 1zz.I wish I could be of more help,but I haven't heard of this kind of problem before.That's why I asked what boost you were running to see if you had a leak or not.I would think I'd have thrown a CEL, though. I mean, I got a CEL just from a crack in a hose.......if there was a significant vacuum leak I'd definetely be throwing CELs like nobody's business.

kevera · Post by **kevera** » Fri Mar 28, 2008 12:50 am

You'd think so,but you can't hit the redline,so........

Petrucci914 · Post by **Petrucci914** » Fri Mar 28, 2008 12:54 am

Quote, originally posted by kevera Â»You'd think so,but you can't hit the redline,so........Welll........suggestions? My main ECU is a replacement from an 04 but I don't think that'd make a difference. Maybe I'll have to pay Lancer a visit at some point.Lancer! Fix it!

wyatt89 · Post by **wyatt89** » Fri Mar 28, 2008 2:20 am

sounds like transmission issues to me...

kevera · Post by **kevera** » Fri Mar 28, 2008 2:46 am

Quote, originally posted by wyatt89 Â»sounds like transmission issues to me...That's what I thought first 2.But I still don't quite understand what his problem is,because CountryVibe asked the right question,but it wasn't answered.

Petrucci914 · Post by **Petrucci914** » Fri Mar 28, 2008 2:52 am

Quote, originally posted by kevera Â»That's what I thought first 2.But I still don't quite understand what his problem is,because CountryVibe asked the right question,but it wasn't answered.Yes I did. I said that it shifts before reaching there.....doesn't climb slowly. Probably a bad solenoid or something. Maybe through in some Lubeguard or work on getting a new valve body (it contains the solenoids, correct?)

kevera · Post by **kevera** » Fri Mar 28, 2008 2:59 am

Quote, originally posted by Petrucci914 Â»Yes I did. I said that it shifts before reaching there.....doesn't climb slowly. Probably a bad solenoid or something. Maybe through in some Lubeguard or work on getting a new valve body (it contains the solenoids, correct?)No solenoids.You answered your question then.When I'm at WOT I'm in 4th gear screaming at the redline.Does yours go through all the gears,when you get to forth it hits 5 grand and that's it.

wyatt89 · Post by **wyatt89** » Fri Mar 28, 2008 3:05 am

stupid automatic trannys...

Petrucci914 · Post by **Petrucci914** » Fri Mar 28, 2008 3:07 am

Well, there are solenoids, right? You're just saying that they're not in the valve body? I'll have to check at what gear I get into. I turned the corner and stepped on it this morning. 2nd gear went up to 6 grand and then it shifted......was going about 65mph at that point.

Petrucci914 · Post by **Petrucci914** » Fri Mar 28, 2008 3:08 am

Quote, originally posted by wyatt89 Â»stupid automatic trannys... Yes. I hate the damn thing......don't really want to spend $3k for what it needs, though. Ugh.

BLAQJAQ · Post by **BLAQJAQ** » Fri Mar 28, 2008 3:41 am

I had the same problem...it has to do with the maf sensor....MAF understands that at x RPM your air intake should be moving so much cfm of air for the gear you are in (ie 500cfm at 4500 rpm in 3rd gear). The f/i introduces more air into the intake charge thus confusing the MAF . But i don't think TRD ecu addresses the change in amount of air bieng moved across the MAF.So when you are in top gear MAF is reading that you are wide open throttle when in actuality you are not. So you get stuck at 3000/4000 rpm in top gear.What your are seeing in the lower gears is essentially the same thing. MAF is telling ecu that you should be in a cetain gear based on the amount of air you are moving...ie it reads that you are in WOT in 3rd gear as your rpms are climbing thus the quick shift before redline. I went with a differnt piggy that allowed me to adress that issue and continue to rev to redline in each gear ( Iwas aso professionally tuned and think so was Kevera).actually that is a good question have you been tuned professionally that can also help solve the problem.just my 2 cents

Petrucci914 · Post by **Petrucci914** » Fri Mar 28, 2008 3:47 am

Quote, originally posted by BLAQJAQ Â»I had the same problem...it has to do with the maf sensor....MAF understands that at x RPM your air intake should be moving so much cfm of air for the gear you are in (ie 500cfm at 4500 rpm in 3rd gear). The f/i introduces more air into the intake charge thus confusing the MAF . But i don't think TRD ecu addresses the change in amount of air bieng moved across the MAF.So when you are in top gear MAF is reading that you are wide open throttle when in actuality you are not. So you get stuck at 3000/4000 rpm in top gear.What your are seeing in the lower gears is essentially the same thing. MAF is telling ecu that you should be in a cetain gear based on the amount of air you are moving...ie it reads that you are in WOT in 3rd gear as your rpms are climbing thus the quick shift before redline. I went with a differnt piggy that allowed me to adress that issue and continue to rev to redline in each gear ( Iwas aso professionally tuned and think so was Kevera).actually that is a good question have you been tuned professionally that can also help solve the problem.just my 2 centsI see what you're saying, but Kevera and I have pretty similar set ups and he says he can hit Redline easily. I keep thinking transmission.......I dunno. Can I sell the thing and get something new?

BLAQJAQ · Post by **BLAQJAQ** » Fri Mar 28, 2008 4:41 am

Quote, originally posted by Petrucci914 Â»I see what you're saying, but Kevera and I have pretty similar set ups and he says he can hit Redline easily. I keep thinking transmission.......I dunno. Can I sell the thing and get something new?HMM...i hear ya..but modding adding power is always a pain in the (removed)..

Petrucci914 · Post by **Petrucci914** » Fri Mar 28, 2008 4:44 am

Quote, originally posted by BLAQJAQ Â»HMM...i hear ya..but modding adding power is always a pain in the (removed)..I can do a stall test. Should stall speed be at redline, or what should it be?

kevera · Post by **kevera** » Fri Mar 28, 2008 5:17 am

Quote, originally posted by Petrucci914 Â»Well, there are solenoids, right? You're just saying that they're not in the valve body? I'll have to check at what gear I get into. I turned the corner and stepped on it this morning. 2nd gear went up to 6 grand and then it shifted......was going about 65mph at that point.That's right,they aren't in the valve body.Take it from BlaqJaq,he's had so many obstacles to overcome it's not funny.It could be in your MAF sensor as he said.It's a start.And we don't have the same setup,bro.I am running a different piggy and I'm tuned and my Tranny is done and I'm waiting for my PPE header.Close,maybe not.

Kamikaze · Post by **Kamikaze** » Fri Mar 28, 2008 5:24 am

I was bouncing off the rev limiter the other day... I was wondering if it was ever going to shift... mabye it was because I lost traction... oh well.Sorry Adam, not sure what's wrong.. hopefully you can get it fixed so you can really use the S/C.

Petrucci914 · Post by **Petrucci914** » Fri Mar 28, 2008 5:26 am

Quote, originally posted by kevera Â»That's right,they aren't in the valve body.Take it from BlaqJaq,he's had so many obstacles to overcome it's not funny.It could be in your MAF sensor as he said.It's a start.And we don't have the same setup,bro.I am running a different piggy and I'm tuned and my Tranny is done.Close,maybe not. I thought you were running the TRD piggyback. What are you running now?Know anywhere to get a cheap MAF? Wasn't Lancer running a Lexus one at some point?

kevera · Post by **kevera** » Fri Mar 28, 2008 5:30 am

It's not a Unichip,I'm actually running 2 controllers now.I heard you can use a certain Subaru MAF,but not sure which model and year.Ebay is a start,because new is x-pensive.Maybe check rockauto if you want a new one.I'm curious to see what Lancer says about the Lexus,because I didn't know you could use one of them.

Petrucci914 · Post by **Petrucci914** » Fri Mar 28, 2008 5:44 am

So basically I'm thinking......MAF SensorTPS (Throttle Positioning Sensor)Torque Converter/SolenoidNo CELs, though.Is the TPS hard to change?

kevera · Post by **kevera** » Fri Mar 28, 2008 6:04 am

Quote, originally posted by Petrucci914 Â»So basically I'm thinking......MAF SensorTPS (Throttle Positioning Sensor)Torque Converter/SolenoidNo CELs, though.Is the TPS hard to change?The TPS would give you a cel though.I've played with mine and it's really picky.You need to set it with a multi-meter.Did it do this before you did the seafoam?The maf might be a good start.

Petrucci914 · Post by **Petrucci914** » Fri Mar 28, 2008 6:09 am

Ya, it's done this for a while. It's never performed how I expected or wanted it to perform. There would be a few times were it would but it was never consistent enough to make me satisfied.

kevera · Post by **kevera** » Fri Mar 28, 2008 6:32 am

Quote, originally posted by Petrucci914 Â»Ya, it's done this for a while. It's never performed how I expected or wanted it to perform. There would be a few times were it would but it was never consistent enough to make me satisfied.Well that's a drag.It's the best thing I've done so far,I'm happy with it.To bad you couldn't borrow a MAF to try 1st before you buy,just to make sure without spending the cash.

Petrucci914 · Post by **Petrucci914** » Tue Apr 01, 2008 5:07 am

I may just buy a MAF, I dunno. I'm going to check some more hoses because I talked about that high-pitched whistle noise......sounds like air spooling up or something. Never noticed that when I first got it. Maybe another hose to the airbox is split or somethin.

Petrucci914 · Post by **Petrucci914** » Thu Apr 03, 2008 5:02 am

Been idling a little rough lately, and I keep hearing that whistling sound. Thinking maybe a bad IACV, or another vacuum leak somewhere. I cleaned the IACV when I did the SC install.......maybe a gasket is messed up.

Lancer · Post by **Lancer** » Mon Apr 07, 2008 9:16 am

Almost sounds like it's running in safe mode, like when you get a cel from your maf sensor. When is the last time you reset your ECU? Did you say you HAVE a replacment ecu in your car, not the stock one?I don't have the Lexus maf sensor, yet. Waiting for the new engine crap to get done and I'll talk to the tunner guy about the 'larger' maf. I found out about the lexus maf from the tunners here in town that built a 300hp celica. That's what they used cause it reads higher flowing air. I think it's time for you to take her into a tranny shop.

Petrucci914 · Post by **Petrucci914** » Mon Apr 07, 2008 9:20 am

Quote, originally posted by Lancer Â»Almost sounds like it's running in safe mode, like when you get a cel from your maf sensor. I don't have the Lexus maf sensor, yet. Waiting for the new engine crap to get done and I'll talk to the tunner guy about the 'larger' maf. I found out about the lexus maf from the tunners here in town that built a 300hp celica. That's what they used cause it reads higher flowing air. I think it's time for you to take her into a tranny shop.I have a MAF coming to me. I can also get a throttle body from an 03 Vibe with 27k miles on it, with the TPS and IACV on it for lik $80........may think about getting that. I brought it to the tranny shop this past summer and they said everything was within specs. I'd like to do some tranny work on it but I don't want the bill that you had.

kevera · Post by **kevera** » Mon Apr 07, 2008 11:12 am

I agree with Lancer.It does seem to be in safe type mode.The MAF is a good start.I don't think the throttle-body has anything to do with it though.It could possible be your tranny slipping,but it's hard to diagnose without actually seeing the problem.It wouldn't hurt to pull the battery and recheck all your connectors on your ECU also.

Petrucci914 · Post by **Petrucci914** » Mon Apr 07, 2008 11:14 am

Quote, originally posted by kevera Â»I agree with Lancer.It does seem to be in safe type mode.The MAF is a good start.I don't think the throttle-body has anything to do with it though.It could possible be your tranny slipping,but it's hard to diagnose without actually seeing the problem.Maybe I'll record a video.

Petrucci914 · Post by **Petrucci914** » Mon Apr 07, 2008 11:53 pm

I replaced that hose that kept cracking with a nice re-inforced one. The car has seemed to run better ever since. But I should have the MAF very soon and I'll go from there.

BLAQJAQ · Post by **BLAQJAQ** » Tue Apr 08, 2008 2:31 am

Not sure how this would work with your set-up but I used an MSD Ignition MAP sensor for compacts. It actualy fools MAF It really helped at that time (using differnt piggy).might be worth a look

Petrucci914 · Post by **Petrucci914** » Tue Apr 08, 2008 3:06 am

Maybe belt slippage? I should probably get one of those Goodyear Gatorbacks. Anybody have the part# off hand?

kevera · Post by **kevera** » Tue Apr 08, 2008 3:57 am

Here are the 2 numbers on the box.6pk21604060850