Holy knock counts batman!!!

[Rahdigga8188]

Well my car has been feeling a lil weird as of late so, the first thing I did is turn the boost down a lil, then i decided to take her out and log her. First off, i did a lil researching about tuning and i read that on a 1st gen you should tune to try to get your fuel trims down to 100%. Well my low, mid and high (in that order) are 118%, 103%, and 114%. Does that mean my car is running rich? I'm confused. Second when i did the log I included intake temps because they seem pretty high to me( over 100degrees ) and i figured they could be important, even though for some reason they came out Celsius. my car hardly ever smokes, but it felt like its lost its umph. Well heres the log, Note: not for the squeamish.

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Also when I look at other logs the o2 reading are in the 90's. If thats the case aren't mine rather low? I don't wanna drive my car if its gonna be acting like this.

 

[91etalon]

stop driving your car unless you want to be buying a new motor! you got major issues. i have no idea what your set up but i would do a boost leak test on the car. check all your intercooler clams make sure they are all on tight. your main problem however is your timing. you have it set way way way too high. if im seeing correctly it says 36 degrees at 3000 rpms? reset your base timing to 5 degrees and that should take care of your problems.

 

[Rahdigga8188]

yeah I just pulled the plugs and they were white as can be. I got nervous so i did a compression test. 160-160-160- and around 150. not too bad i dont think. So the timing being advanced could cause this issue? should I boost leak test before or after doing the timing?also how can u test your o2 sensor? mine never reaches the 90's, or could the fore mentioned problem cause this also?

 

[91etalon]

dont worry about your o2 sensor i think its fine, plug in your datalogger and read the base timing at idle. adjust the cam angle sensor until it goes down to 5-7 degrees and then test your car out. shouldnt take you more than 5 minutes to fix. if you could post up another log sheet after you do this and i could help you more if you still have issues but im fairly certain its just your timing thats causing your problems.

 

[Rahdigga8188]

my base timing at idle is between 8 and 10 degrees. But this hasnt been going on since i got the car running. i have owned the car since may and havent had knock counts like this. Here is a log before the minor upgrades.

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when doing this log I realized that the tps was bad so i replaced it. The car was running really good. then 2 weeks ago i started gettin this stalling problem. The end of the weekend realized the turbo was trashed. Replaced that and around that time realized i was running lean. I couldnt even drive it. I checked the mpi fuse and is wasnt clicking and the fuse was blown up front. Replaced both of those and the car was runnin ok again but not the same. I thought it was because of my high intake temps> so I did the log today to look at the intake temps and spotted the knock. Took your advice and started doing the boostleak test and found 1 at the biss and 1 at a injector. But I thought that would make me run richer. Also as of late i have to actually hit the gas to start the car. Bfore it was just turn the key and go. I'm running 13lbs on 93 and it was about 90 out today.I was thinking maybe my fuel pump was goin bad or something. How can I test. I plan on upgrading all that stuff soon anyway. So I guess I will go out and do the timing thing and get another log.

 

[Auto RS T]

dont worry about your o2 sensor i think its fine, plug in your datalogger and read the base timing at idle. adjust the cam angle sensor until it goes down to 5-7 degrees and then test your car out. shouldnt take you more than 5 minutes to fix. if you could post up another log sheet after you do this and i could help you more if you still have issues but im fairly certain its just your timing thats causing your problems.

NO NO NO! This is not how you set base timing!

Don't use the logger at all to set timing, just to look at it afterwards. Grounding out the Ignition Timing Adjustment Connector and the DLC connector puts the car in "idle adjustment mode".

Grounding out just the Ignition Timing Connector and using a timing light and CAS is the right way to set Ignition timing.

How to use a timing light:
http://vfaq.com/mods/wayback/BradBauer/misc/tim-l.html

Idle adjustment:
http://vfaq.com/mods/BISS-1G.html

(Rahdigga8188) Set your timing and idle off of these procedures, then repost.

 

[dsmvr4182]

NO NO NO! This is not how you set base timing!

Don't use the logger at all to set timing, just to look at it afterwards. Grounding out the Ignition Timing Adjustment Connector and the DLC connector puts the car in "idle adjustment mode".

Grounding out just the Ignition Timing Connector and using a timing light and CAS is the right way to set Ignition timing.

How to use a timing light:
http://vfaq.com/mods/wayback/BradBauer/misc/tim-l.html

Idle adjustment:
http://vfaq.com/mods/BISS-1G.html

(Rahdigga8188) Set your timing and idle off of these procedures, then repost.

yeah you need to pull some timing on your car. i would not drive it any more untill you adjust your timming and get your knock down 42 counts is blowing the motor.

but good luck with all of it and hopefully u can get it worked out fast.

but ### pull some timing the right way like i quote that is the correct way to adjust timing and is the only way i would ever do it.

 

[91etalon]

NO NO NO! This is not how you set base timing!

Don't use the logger at all to set timing, just to look at it afterwards. Grounding out the Ignition Timing Adjustment Connector and the DLC connector puts the car in "idle adjustment mode".

Grounding out just the Ignition Timing Connector and using a timing light and CAS is the right way to set Ignition timing.

How to use a timing light:
http://vfaq.com/mods/wayback/BradBauer/misc/tim-l.html

Idle adjustment:
http://vfaq.com/mods/BISS-1G.html

(Rahdigga8188) Set your timing and idle off of these procedures, then repost.

youre absolutely right, i just offered him a quick an easy way to test if his timing was causing his problems which i believe it is.

 

[91etalon]

Took your advice and started doing the boostleak test and found 1 at the biss and 1 at a injector.

try and fix these, specially the injector leak. make sure youre not leaking any fuel as this could be a major factor in your 40+ counts of knock.

 

[Rahdigga8188]

ok its too dark and I'm too frustrated to deal with this tonight. Now when I hook up the logger it gives me intermittent info, just flashes numbers every now and then and gives me a 1hz refresh rate no matter what. I also have a random misfire. And I'm gettin like crazy numbers at idle like my intake temps were like 111 degrees at idle at night, 242 counts of knock, timing advance in the hundereds. I'm burnt and hungry. Any ideas, fire away.

 

[Rahdigga8188]

Ok, dont think I'm trying to find an easy way out. I'm just checking all the stuff i have added as of late. Anyway I cant do the timing until my lazy friend brings over his timing light or my wife comes home. I need a beater! Anyway, I remembered i got a new mass and hardpipe from a friend, and I remembered a post about something like this soI pulled the filter and found this.

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http://memimage.cardomain.net/member_images/1/web/2377000-2377999/2377998_36_full.jpg

I never had this done to my car and My problems started getting worse after I added all the new stuff (this included) so could this in combination with my timing and high IAT's because the excessive knock and lean conditions?I just wanna know so I dont put this back on.

 

[Auto RS T]

This may have added to the problem because a hacked mas will run leaner than a stock one.

You could always swap with a stock mas to tell. Is the check engne light on? Are you sure it is a turbo mas and not a n/t?

Get that timing/idle set. Look everything else over well.

 

[91etalon]

are you running an afc at all?

 

[Rahdigga8188]

no afc, didnt think i would need one with my mods... looking for one today. My friend told me today he was running this maf on his car with no trouble at all ( but now that i think about it he was also running link), and no I wasnt throwing any codes. Which one should I set first.. the idle or the timing? also how can you tell between the turbo and non turbo Maf?

 

[kelvinb]

do you have a boost gauge to verify what you are running? if so what were you running before...and what boost level now? are you creeping at all? what octane of fuel are you running?

 

[91etalon]

no afc, didnt think i would need one with my mods... looking for one today. My friend told me today he was running this maf on his car with no trouble at all ( but now that i think about it he was also running link), and no I wasnt throwing any codes. Which one should I set first.. the idle or the timing? also how can you tell between the turbo and non turbo Maf?

Youre going to want to set your idle first and then your timing. Also that maf, the way it is could be causing problems for you without an afc so if you have an extra maf at hand swap back to a stock one. If you are messing with the boost on the car at all, make sure you have a boost gauge and keep it under 15psi. If you dont have a boost gauge dont even mess with the boost.

 

[Auto RS T]

no afc, didnt think i would need one with my mods... looking for one today. My friend told me today he was running this maf on his car with no trouble at all ( but now that i think about it he was also running link), and no I wasnt throwing any codes. Which one should I set first.. the idle or the timing? also how can you tell between the turbo and non turbo Maf?

When setting the idle and the timing, you may have to jump back and forth between procedures a few times to get everything square. Start with the idle. Once you bring the speed up to where the car will run by itself, try adjusting timing.

The idle procedure will only work with the vehicle running at less than 1200 RPM.

The difference between the Turbo and N/T MAS are the pinouts, the turbo has 7 pins.

 

[CarbonGSX]

do you have a boost gauge to verify what you are running? if so what were you running before...and what boost level now? are you creeping at all? what octane of fuel are you running?

Read the Original post... he clearly states how much boost and what fuel he is running.

 

[Rahdigga8188]

Ok, i retarded the timing and changed back to a non hacked maf and bam, very low knock counts if any. So I decided to get a log to post and I noticed 2 things. First off I wanted to keep low boost conditions and my mbc sucks so I ran a line right from source on j pipe to the wastegate. Well this didnt work because I was still hittin crazy high boost and then knock in the 5k rpm range, so I backed off. Checked and tube had a hole. So I try again and now my logger is goin insane again. I only log 3 things rpm knock and timing advance and I get between a 0 and 1 hertz refresh rate. The number dont even go up and down they just dissappear and reappear every now and then. And I see crazy counts of knock at idle.. like 255. So the car feels ok but I can't no for sure and once again its late and I'm done for the night. Oh yeah... this didnt just happen if you happen to be lokin at the time. This is the time I'm gettin home from the police station.... but thats a whole nother story!

 

[kelvinb]

Read the Original post... he clearly states how much boost and what fuel he is running.

i do not see where it specifically says boost levels or what octane of fuel he is running. all he says is 'i turnedit down a lil'..........'lil' from what?

rahdigga bypass your mbc and go straight from your jpipe to your wastegate and see what happens.

 

[Rahdigga8188]

yeah thats what i did, ran a hose between the 2 and still ended up hitting 15-16lbs.