Chip or calpak probs?

[1QUICK85]

Ok, so I have a turbotweak.com chip burnt to work with my 87 ECM and my stock 85 coil, mod, maf, etc. But, still having problems with my car(MODS:V2 intake/spearco FM/TA-49/40# inj.):
If I go half throttle get up to around 5 or 6 #'s of boost then the car just bucks or hesitates...no knock, but won't go anywhere either. But, if I floor it right away it goes right up to 10# of boost then slowly dies off to 6 or 7#'s. Then just hits a wall and builds no boost. Did notice if I take the air filter off that she pulls at 10#'s a little longer(thanks Broke1), but eventually does the same process. So, fuel is set to 38#'s line off anything above this and the above is even worse!! Eric said it should run at 43# with line off?

Another thing I just remember is that I never swaped over my calpak from my stock computer, is that causing probs?(trying to get ECM back from a board member that is borrowing it)
My other question is can I throw in a 87 chip made to run my 40# red stripe injectors(like a mass produced one) with my 85 maf, coil, & mod?? Would it run good enough to tell me if my chip is causing my bucking or hesitation problems?

I have a low boost problem and hesitation/bucking/shaking prob. I just want to get this hesitation one figured out first. I am going to look into my spark plugs(running autolite 24's gapped at .035) and wires(msd's) later this week. Coil/mod is a know good one too. Will try to get T-link on the $%#^$ thursday. Just looking for the chip advice was going to try to pick up a good used 87 chip for my injectors. Thanks much, Nick

 

[Jerryl]

Quick,

Had similar problems a while back.
Not sure how I fixed it, but, I am sure you have verified exhaust leaks, vacuum leaks, TPS, IAC, etc.
Are you seeing the correct FP at boost?

"Read" your plugs. Are they wet? Black?
Sure sounds like a spark problem to me.
Be sure to verify the ground cables (Motor and front fenders).
Is the computer seeing the 13 plus volts?

 

[1QUICK85]

Fuel pressure does go up with boost. Grounds are good, have check the rest besides plugs and wires. I agree with ya on the spark problem, but I still wonder if my custom chip is causing any probs. Would a smaller gap on my plug hurt anything.....say .033 or so? I actually have a 3rd coil pack/modual sitting here too, that I can try.
I was also reading that the calpak doesn't do anything unless the ECM or system fails then the calpak is used for limp mode, but its not used for regular operation of the car,so that is probably not causing any probs?
TIA, Nick

 

[Jerryl]

Originally posted by 1QUICK85
.......... I was also reading that the calpak doesn't do anything unless the ECM or system fails then the calpak is used for limp mode, but its not used for regular operation of the car,so that is probably not causing any probs?
TIA, Nick

I belief this is correct.
Cam sensor verified also? Did unplug this after start-up?
What are you MAF and O2 readings at?

These problems always stink. At least the problem is consistent right? Easier to find than one that "comes and goes".

 

[Eric Stage I]

The calpak won't cause a problem. The chip calibration could definitely cause a problem, especially with the 85 maf/87 ecm combination. It will take some work to get it right. We need all the info possible to figure out whether it's rich or lean when the stuttering is happening. A turbolink run would be helpful. Record a run while slowly coming up on boost into the stutter area. Hopefully the O2's and airflow readings will tell us something. If turning the fuel pressure down helps, then it sounds like its too rich.

Regards,
Eric

 

[boostmaster]

Airflow Sensor!!!

 

[1QUICK85]

Hey Eric was just about to email you and see what you thought. I should have some time thursday to get a run in hopefully. I have been dickin' with this forever and now I am just finding the time to really dig into the car. I did do a key off with the turbolink real quick tonight and saw the tps at .43V and the IAC was at 150 So, will have to reset those again and go from there. I think once I figure this stuttering problem out my boost problem will be much easier to work out. I actually have a new MAF from NAPA.......but is that one working right?LOL Thanks for all the replies guys will update ya thursday. - Nick

 

[1QUICK85]

Ok I got a run in, but the numbers it is showing me are all F'd' up! It shows the RPM's and they seem to be right according to how the run went, but the speedo was reading 130mph at one point?? So, not sure if the rest of the stuff is reading accurately or what the hell is causing that? I also set the fuel pressure at a little before 40# on the gauge line off. At 43# line off the damn car spitts black crap all over the floor like its raining, a little rich. Seemed a little rich at 39# too though. And the T-link bounces between rich and lean throughout the run?
But, I set the TPS and IAC to .48 and 19 at idle(engine warm). When I took it for a couple runs it didn't stumble(insert small smile here) and the boost actually went higher then 10#'s(almost hit 15# in first) and I didn't adjust nothing with the boost??Car pulls nice and steady at a little over 10# once it settles in and then all of a sudden it hits a wall.....at that part in the run the T-link shows the following -
RPM - 5200
IAC - 174
LV8 - 0#
TPS - 1.72V
O2 V - 31mV
MAF - 6 G/S
02X - 147#
BL - 254
ESC COUNTS - 1
19.8 DEGREES OF SPARK RETARD
VOLTS 13.6
LOOP - CLOSED
At this point in the run the T-link also shows the coolant temp at -34 degrees and the mph speed is at 0 ?? Knock gauge showed nothing......stayed in the green?
Also got the following malfunction codes: 25, 32, 33, 34, 41(cam sensor failure), 15, 55(faulty ecm), 21, 22, 14, 23. The MAT and EGR codes shouldnt really apply to much as my EGR is removed and I am trying to run without the MAT. I also noticed a calpak code too....but didn't pop up when I did the run.
How do I send my run to someone by email? My labtop doesnt have internet connects and I tried to transfer to a floppy disk and then open on it on my home computer and all I get is a wierd code looking file?
I know this info doesnt give ya much to work with but I just wanted to throw it out there for now........hopefully I can email the whole run somehow. So, what should my next move be guys? TIA, Nick.

 

[boostmaster]

Faulty ecm.
Also since you have done the conversion from the 84-85 ecm make sure you are using the correct calpak for the turbo cars.
Check GNTTYPE.ORG for that info.

 

[1QUICK85]

I was just checking all my malfunction codes out on gnttype.org and most of them had faulty ecm in the listing for causes, hows about that . I will check into the calpak thing.........I got the ECM off of the board here used.....probably pulled from the junkyard and I didnt put my calpak in it so possible that it doesnt have a turbo one?
Thanks, Nick.

 

[1QUICK85]

Ok, GNTTYPE.ORG say to use one of these two calpaks #'s -
16036503
16036504
And I am using calpak # - 16036405 So, is that causing problems? TIA, Nick.

Oh ya, just checked the part number out on my ECM and it is the correct part number for the conversion!!

 

[boostmaster]

Calpak could be the problem, get the correct one, if problem persists, then better get a new ECM.

 

[1QUICK85]

Alright will do. Have to get my stock ECM back from my friend and get my stock calpak in there. I don't want to jump the gun, but I feel like I am on the right track to getting this piece of turd back on the road!!! Thanks, Nick.

 

[Eric Stage I]

What version of Turbolink? It sounds like it may not be set up to read the 86/87 datastream correctly.

Eric

 

[1QUICK85]

Turbolink 4.0, and I have selected a 1987 turbo regal as the car I am scanning. Nick

 

[Eric Stage I]

When you start Turbolink, make sure the "special hardware" box says "none".
The calpak should not affect the datastream. If all the settings in TL seem right, then you may indeed need to try another ECM.

Eric

 

[1QUICK85]

Will do thanks Eric! Nick.

 

[1QUICK85]

Ok finally got time to put the old orginal cal-pak in the 87 ecm. Only codes its pulling now are low tps and MAT circuit. MAT circuit is to be expected as noted before. So, I don't know if the codes will show up in the next couple of days when I run it more because of the ECM getting reset. I still get a problem with higher boost just hitting a wall or stumbling to the point that it wont build anymore boost and drops below 5# of boost then. The hesitation at part throttle is completely gone from resetting the TPS and IAC. So, I think my problem is with spark at higher RPM's?? I did notice today one of my plug wires by the downpipe is cracked in a few spots (too much heat, running MSD wires)maybe that is arching out at higher boost levels??? Time to try a new set of wires and maybe throw in another set of new plugs(autolite 24's @ .035)?? Gap to big?? Have drivin' the car on a couple of trips up to the lake......45 minutes one way no problems what so ever. Actually best it has ran in a year. Just got that damn stumbling at higher gear boost levels. Thanks much, Nick.

 

[boostmaster]

If you have bad wires believe me that would cause the symptoms your experiencing.

 

[1QUICK85]

OK, put new MSD wires and plugs gapped at .030!! Took care of my hitting a wall problem at higher gear/boost levels. But, I still had a slight stumble going on. It was a different feeling then before, like it had to much fuel now, so I lowered the fuel pressure to 34# line off(like 2#). Then the car pulled right through all the gears without a problem. Making about 14 lbs. of boost in first then a little over 10# in second and third. I may try hooking up the stock solenoid again..right now its running with a pressure regulator letting of boost. So, running wise I think my only obsticle left is the too much fuel problem.
Eric what do I need to get you so you can get my chip adjusted for the too much fuel problem. A T-link run? I am going to try tommorrow and see if the T-link will work properly. If not I think it may be windows not installed right on my labtop. Installed it myself

*EDIT* Does my fuel pressure really matter? I mean the number the gauge is reading is just a number or is it important to be running the suggested 40# to 43# with line off?? I noticed one light on the knock gauge lite up in first gear, but that 14# of boost, 93 octane, & the front mount not really working yet hey?

Nick