Did a WOT run today with the wastegate actuator arm disconnected and didn't show any knock. So apparently this is real.See post above, please give me some feedback. I added pressure but the car still thought it was running lean. What is the deal with that? Is that the manifold leaking?

Ok, so I just did the Seafoam treatment and I think that I have an exhaust leak between the head and the exhaust manifold and possibly some cracks in the manifold as well. That may explain the O2 discrepancy, but would that cause some of the knock problems?The fuel pressure is now at 42psi...

It knocks even with the WI activated at 5psi. Timing belt was done ~2 yrs ago because the balance shaft belt snapped and took it out, and a few valves in the process. Head was rebuilt then. I haven't checked the timing but I probably should to be sure.The car doesn't burn oil, it has decent...

It might.But I have 550cc injectors. Theoretically, if I raise my fuel pressure, I will get more timing because of lower IDCs. Am I correct in this thought? I'm up for trying it, though. I was going to up it from 36 to 40 or 43.

Ok, knock sensor replaced but I'm still knocking.I am at a loss for what might be wrong. I'm going to seafoam it tomorrow to see if I can clean everything out. This damn car is pissing me off so much.

Looks like the knock sensor is leaking stuff like crazy. I was under the car tonight and saw it, so I think that'll be next weekend's project.Can I drop the intake support bracket without having to worry about anything else? I'm going to get at it from under the car, it looks like it'll be...

Tom, I had the timing as low as 0 base and there was still knock. I have tried running really rich and running lean as boost comes on, but still nothing. I really believe that it is an octane problem and a knock sensor being old. So I may replace the knock sensor and go from there.

If you're stock with no upgrades at all, I'd look for a boost leak or checking your knock sensor to see if it's bad. There are articles about that in the tech section or if you search for it.

22* is what I see at WOT at higher RPMs. I'm not really shooting for anything, but just trying to rid the car of knock and tune for no/minimal knock. My timing curve looks to be pretty normal.

Generation1JeY, you shouldn't have knock at all if your car is tuned right :) Torque should be 17lb-ft I believe, so that's not very tight at all.coltboostin, I've already tried running REALLY rich to the point that the car sputters and IDCs are too high if I richen it up, and it still knocks.

daren, this is true that on the run last night, I got a large knock sum as I hit 6000rpm. Other runs that I made did not show knock. So random knocking on some runs and not on others probably means that I should check out the sensor, replace it (since it probably has never been replaced), or...

Daren, it sure is real. I put in a few gallons of 100 octane and the problem disappeared.Granted, I probably will get a new knock sensor (after I check for goo), but the 100 octane cured the problem of detonation from high timing. Or at least that is what I'm assuming.It was a cinch to...

I am getting knock at 2800 - 3000rpm when the turbo is spooling. I don't think that the injector is at fault there, but I may indeed be running the base pressure a bit low for WOT runs. I can up it a bit later, but I'd like to get the original problem fixed (knocking when turbo is spooling at...

See this thread for some previous info: http://www.dsmtuners.com/forums/showthread.php?t=243232Ok, so I ran a log with 100 octane gas and methanol and I'm STILL knocking. AFR is 11.x:1 and seeing 21-22deg of timing. I verified that all timing settings are correct.On 93, I'm seeing...

HOLY HELL the car runs like a raped ape on 100 + methanol!!!I will get a log tomorrow on the way to checking my timing to see if the ECU is actually getting the timing that it wants (ie without the pin being grounded) and I will see the REAL timing curve, when octane isn't an issue.

90blacktsiawd, I have a thread titled "Timing help needed" in this forum about my troubles.I have set the base timing to 5*. I haven't updated my profile in awhile. I am seeing knock come on as the turbo is spooling at 2800 - 3000rpm (8psi or so). I did not look at the timing at idle once I...

When do you have your meth set to come on? How low is too low?I ask because I'm having problems running too much timing as a result of a MAFT and low airflow numbers (creating the high timing).Currently, it comes on at 8psi. I run 18-19psi. 100psi, M5 nozzle. I want to jack it up to...

Set the base size to correct for larger injectors.See the link above for the full instructions.

Post #12. Thanks for the offer Jon, but I think that I found the solution:100 OCTANE FUEL!!If only it didn't cost $7.99/gal...Ok, so I'm running too much timing for sure since I was getting minimal knock with the 100 octane (9 counts). I'm seeing 95% IDCs in 2nd gear at redline, but 3rd...

I thought that a 4th gear pull would show the data a bit better, but I can do a 3rd gear pull.I pulled fuel out with the base setting and the car doesn't like it at all, knock comes on sooner and it knocks when starting out in 1st gear from a stop.I do need to check my knock sensor and...

Ok, on the run home I tried running much leaner at WOT. No difference in the knock. I was -15% at 3000 and -30% at 4000 on the AFC (so -22% at 3500). I didn't see that the timing was changing much, or the IDC for that matter. The wideband was a lot leaner and I tried to pull fuel out...

Kelton, I have tried that to the point of running 12.5:1, but I will have to try that again. Obviously, something is causing the car to knock like this and I have gone thru almost everything.The logger must not react fast enough on the Palm because when I hit it, it only shows me up to 55%...

spyderturbo, I checked them before they went in. They are almost 10k old now, so I probably should put new ones in. They do come at .028" out of the box from NGK, and I did verify this before I put them in. And I really don't think that it's the plugs - the car runs pretty smooth otherwise...

The AEM WBO2 only reads down to 10:1, but I know that it's lower because the car is sputtering. I can't richen it up at all because the car bucks if I richen it up.MAFT Settings are for 3" GM MAF (blow-thru config), Base 0/B, idle +8, mid 0, high 0. I have to add 6% at 1000rpm on the SAFC to...

I'm already at 10:1 or richer on the WBO2, so I can't add more fuel. That and I'm not on boost yet, it's only at 8 - 10psi when the knock starts.I'm kinda thinking that I'm stuck with a fuel setup that the MAFT can't handle.

Anybody have any ideas??

Log is as follows:4th gear, WOT only shows 96 or 97% on the logger (shows 100 on the SAFC tho, is that a problem?), WBO2 reads 10:1. Boost is at 8-10psi when knock hits. I let off because of (obviously) the excessive knock. Even with bringing the MAFT settings leaner, it doesn't seem to...

Whenever I go WOT in 3rd gear to try to log, I end up knocking badly as soon as timing drops from wherever it was when I started (mid 20s) down to 20 or 19.It never fails that as soon as I hit 20, the knock kicks in. That usually happens around 3200rpm or so in 3rd gear.I'm wondering what...

Your logger is showing what the computer "thinks" the timing is or what it wants to believe it is, not the ACTUAL value. You have to ground the timing pin and set the timing by rotating the CAS while using an inductive timing light.

What's wrong with the pocketlogger? Palms are really cheap for an M100 series... that's really all you need.

Travis, I am dealing with this stuff right now as well.I have found that you really have to watch your airflow and IDC. Too low of an airflow will give you too much timing (ie by rasing your "injector setting") or too high will get you into trouble with fuel cut (ie too low of an "injector...

Steve, thanks for sticking with me on this thread.I talked to TurboBob from Full Throttle Tech (a 3S owner as I was in the past) and he said that I should try setting the dip switches for the MAF sensor to the 3.5" GM setting. Apparently, the injector setting size chart does not really apply...

Is there a way to check the wiring harness to see if I'm losing voltage somewhere? I mean, there has to be SOME reason why I'm running 10.x on the wideband and only seeing .88v on the datalogger...I don't know electrical stuff very well, sorry if it's a simple question.

Ok, I checked my timing and it needed to be adjusted. No help there though, still no cycling at idle.Tested the plug on the car. Only one of the heater wires gets 12v. Should they both get 12v with the ignition on?I just replaced the O2 sensor - fired it up and it jumps right to 139%. I...

Alright, I guess I am going to be finding a timing light for rent at Pep Boys so I can get it checked.

Turbo2086, I have done that many many times now, no help there. Mid is 109% and High is 107%.Quasimondo, I will have to double check that, but my Palmlogger shows that it's fine.

The cool thing is that my gas mileage really isn't suffering much. I get 30mpg highway and ~24 around the backroads. Not too terrible for a quick little car.

I will have to check the resistance. WB reads 14.5 - 15.2 or so when cruising. Seems normal to me.I just did a 3rd gear WOT pull and was 10.x on the WB and .86 - .89v narrowband til I cut it short at 5500 because of knock.I think that I'll bite the bullet and get a new O2 sensor. It was...

Fuel pressure is 38psi with the vac line off. Running Blow-Thru. Methanol is turned off til I get stuff tuned so I can turn boost up.SAFC is zeroed out because I'm still trying to baseline the MAFT before I get the RPM points set up.MAFT is Base 0,A (530 injector size); idle +2, mid +1...

Ok, I have done everything to try to get this thing fixed. Rebuilt my TB, pressure tested w/no leaks, tried adding fuel... NOTHING will get my low trim off of 139%. The other thing is that the car will idle fine for a few seconds (at a 15.x:1 on the WB), but then it'll kinda sputter and...

I have one from www.summitracing.com, Mallory 4305M. It's a really good unit and is $99. Got a gauge, fittings, and braided stainless line there too. Also, I got an Aluminum fuel rail adaptor from Slowboy and it all came to $165 or $170.Actually I got the regulator for $80 on ebay. But...

I'd make sure that your flywheel is the proper step height. Mine was done to .612" (ACT2600 clutch/stock flywheel) and it feels very easy compared to stock. I am happy that I got the flywheel done to that spec because it is 10000 mi later and it is still VERY comfortable and works well when I...

My real question is:For those of you with an aftermarket gauge that is accurate, is your motor running good pressure on 10W30 in the heat of the summer? What are your 15W50 readings vs. 10W30 (if you have done that comparison?

I just changed my oil to 10W30 after running Mobil 1 15W50 this past year. I had switched from 10W30 to 15W50 at the beginning of last summer and have stayed with it since then. But you can't really get it anymore at Walmart in the jugs, much less anywhere else after Katrina last year.The...

Copper pipe? That thing is worth a fortune now, lol. Copper is like $2.25/lb now.

I was just in a minor fender-bender and I am happy that I had my metal bumper there. The radiator support got bent up pretty good, but not as bad as it would have been if it wasn't there... Granted the speed was probably 10mph, but it would have been more than a hood, bumper, headlight, and...

I literally have 1/2 mile on my set. Just around the neighborhood and they are WORLDS better than the lower springs that I had. I had a Stealth R/T with Eibachs and that was pretty tight. This is pretty damn sweet. Now I wish that my steering ratio was a bit quicker. A smaller steering...

The D2s should be adjustable. I know that the KSports are, and the D2s are very similar.I'd like to know as well because I'm looking at getting one of the two setups.

It's only at idle, though. When cruising, it bounces between 14.3 and 15.2 or so (so 14.6 +/- .6) and I think that's normal.The MAFT is set for 450s.

Another thing I just thought of. If my stock O2 sensor is reading the same as my WB O2 at the end of the downpipe, it's not an exhaust leak... right? It's gotta be something on the intake side of things.Are my assumptions correct so far in troubleshooting? Any advice would be helpful.