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Search: Posts Made By: stew'86MCSS396
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Forum: Tech / General Engine
Yesterday, 12:03 AM
Replies: 11
Views: 27,101
Posted By stew'86MCSS396

Re: Fuel pump won't stop priming?

Oil Pressure Switch (https://www.thirdgen.org/forums/attachments/tbi/352468d1501344235-fuel-pump-relay-harness-image_zps397f9eb4.jpg)
Forum: TBI
05-19-2024, 07:42 PM
Replies: 16
Views: 327
Posted By stew'86MCSS396

Re: 305 tbi firebird issues

Yeah...actually TBI or TPI isn't the actual qualifier...if your vehicle came with an ESC module then it used a 100k ohm sensor. '85-'89 TPIs also used a ESC module so you know what that means. The...
Forum: TBI
05-16-2024, 10:12 PM
Replies: 16
Views: 327
Posted By stew'86MCSS396

Re: 305 tbi firebird issues

Been told the KS should be torqued to 14 ft-lbs and excessive torque can damage it. Try measuring ohms center of sensor to ground. TBI=100k ohms vs 90-92 TPI=3.9k ohms. Probably give you a solid...
Forum: TBI
05-05-2024, 01:00 AM
Replies: 3
Views: 128
Posted By stew'86MCSS396

Re: CFI inlet manifold

I'm posting this to demonstrate that it may be an accepted practice to elongate the holes as this intake already comes that way....
Forum: TBI
05-03-2024, 08:54 PM
Replies: 23
Views: 446
Posted By stew'86MCSS396

Re: 1989 camaro 305 tbi massive engine surge idle and driving.

Typically the stock pump will not make more than 18 psi. Everyone seems to think more is better and install a TPI pump that can produce pressures >43 psi. It's the FPR that regulates the fuel...
Forum: Cooling
05-03-2024, 08:35 PM
Replies: 17
Views: 350
Posted By stew'86MCSS396

Re: A/C coolant fan not running

Soooo...it was fine when you had the TPI on there then it stopped working when you switched to a carb intake??? That tells me something that was installed on the TPI was removed with it (ignore the...
Forum: Transmissions and Drivetrain
04-28-2024, 01:46 PM
Replies: 5
Views: 139
Posted By stew'86MCSS396

Re: 1984 Camaro 700r4 swap to t5 from a 1992 s10 questions

Swapping the tailhousing is probably a must do item since the S10 T5 shifter location is ideal for rodders that want to keep a bench seat....
Forum: Electronics
04-08-2024, 05:04 PM
Replies: 1
Views: 149
Posted By stew'86MCSS396

Re: 1986 TPI wiring identification (cut wires)

The mere fact that they are labeled that way, gonna assume wires coming/going to the ECM. FSM will have the right wiring schematic you're looking for but this may help you out...
...
Forum: TBI
03-31-2024, 02:57 PM
Replies: 5
Views: 317
Posted By stew'86MCSS396

Re: rough idle

That psi would be correct for a stock 350. I'm not quite following who sold you the regulator. Typically you purchase a rebuild kit that comes with a new diaphragm and spring. The fpr would get...
Forum: TBI
03-30-2024, 09:21 PM
Replies: 5
Views: 317
Posted By stew'86MCSS396

Re: rough idle

The spring in the fuel pressure regulator (https://assets.rebelmouse.io/media-library/gm-fuel-injection-system.jpg?id=31596659&width=1200&height=800&quality=90&coordinates=20%2C0%2C20%2C0) is suppose...
Forum: DFI and ECM
03-23-2024, 04:07 PM
Replies: 10
Views: 302
Posted By stew'86MCSS396

Re: Tunerpro RT V4?

Idk a whole lot with the 1227165 ecm... Your cable interface will suffice adding the 10k ohm resistor. With winaldl or TPRT sorta remember that pin E gets you 160 baud data which is super slow...
Forum: DFI and ECM
03-22-2024, 09:49 PM
Replies: 10
Views: 302
Posted By stew'86MCSS396

Re: Tunerpro RT V4?

Data looks wonky and non-existent at times.

What cable are you using???

$32b ads/adx......
Forum: Transmissions and Drivetrain
03-08-2024, 09:35 PM
Replies: 4
Views: 432
Posted By stew'86MCSS396

Re: T56 - what is this hole for?

Hmmm...just below this thread is this related thread... https://www.thirdgen.org/forums/transmissions-drivetrain/784838-t56-leaking.html

In my previous pic, the dirt makes it look a little...
Forum: Transmissions and Drivetrain
03-03-2024, 09:10 PM
Replies: 4
Views: 432
Posted By stew'86MCSS396

Re: T56 - what is this hole for?

Idk how to describe it but mine has a thin wall cup plug .375" od/.300" id x ~.685" depth. I just realized that your ^^^attached pic^^^ appears to be an advertisers pic...blow it up 300% and while...
Forum: Transmissions and Drivetrain
02-21-2024, 07:53 PM
Replies: 14
Views: 487
Posted By stew'86MCSS396

Re: 97 t5 swap

I*think*everything that has been said has covered it. I just came back in from going outside to look at a SBC T5 bellhousing and it does not have enough "flat" surface area to accommodate the frod...
Forum: TPI
02-16-2024, 03:33 AM
Replies: 6
Views: 334
Posted By stew'86MCSS396

Re: I need help troubleshooting.

I don't know why people find it necessary to mess with the color of the fonts...
Assuming that's the^^^issue......
Forum: Engine Swap
12-24-2023, 02:58 PM
Replies: 17
Views: 690
Posted By stew'86MCSS396

Re: 84 Trans am engine swap , 84 corvette 350

Doesn't really answer the question but whether you have a flat tappet cam vs roller will dictate which distributor gear material you get.
Forum: TPI
12-06-2023, 10:41 PM
Replies: 5
Views: 511
Posted By stew'86MCSS396

Re: Does A TPI Base From a 1989 Corvette Work With An 86 LB9?

Does CSI come into play with the latter setup???
Forum: DFI and ECM
12-01-2023, 01:23 AM
Replies: 3
Views: 341
Posted By stew'86MCSS396

Re: DTC 43 .No knock counts. WTF

https://cimg3.ibsrv.net/gimg/www.thirdgen.org-vbulletin/731x513/aujp_625c90346628ff6d27717c3f26dcf9ddb79c8683.jpeg
Previous years MAF TPI used a Electronic Spark Control Module in conjunction with a...
Forum: DFI and ECM
11-30-2023, 09:17 PM
Replies: 3
Views: 341
Posted By stew'86MCSS396

Re: DTC 43 .No knock counts. WTF

I know this doesn't explain the "ran great then all of a sudden..."

Code 43 is usually a KS circuit issue. Key on engine off, did you check for voltage at the KS connector to ground? You should be...
Forum: Engine Swap
11-25-2023, 09:07 PM
Replies: 8
Views: 443
Posted By stew'86MCSS396

Re: trouble starting new engine

In post #5 it sounds like they ran the best when treated like solid lifters. I'd pull them all out and see if they all are "hydraulic" locked. You never shared the part number of what you're using...
Forum: DIY PROM
11-17-2023, 10:34 PM
Replies: 13
Views: 612
Posted By stew'86MCSS396

Re: Tunerpro emulation doing some wierd stuff

I've never seen/used that before and having it checked looks like it would do the trick or what I've done in the past is load a saved bin with "AA" in place of the mask ID which essentially disables...
Forum: DIY PROM
11-17-2023, 08:08 PM
Replies: 13
Views: 612
Posted By stew'86MCSS396

Re: Tunerpro emulation doing some wierd stuff

Checksum disabled???
Forum: Engine Swap
11-11-2023, 06:15 PM
Replies: 4
Views: 275
Posted By stew'86MCSS396

Re: Tbi to tpi.

https://www.thirdgen.org/forums/electronics/771183-91-camaro-vats-bypass.html
I didn't read it myself but I think this will shed some light on the topic... lol
Forum: Engine Swap
11-11-2023, 06:06 PM
Replies: 4
Views: 275
Posted By stew'86MCSS396

Re: Tbi to tpi.

I second the motion...your truck never came with VATS but the TPI of that era did. It can be programmed out of the PROM or the appropriate signal generator can be added to make the ECM happy.
Forum: Transmissions and Drivetrain
11-10-2023, 09:14 PM
Replies: 3
Views: 342
Posted By stew'86MCSS396

Re: Problem with VSS on T56 SWap

How are you checking the output of the VSS while the vehicle is moving? IIRC it's supposed to output AC but tbh I don't know what kind of output you should expect probably varies with rpms.

Idk if...
Forum: TPI
10-29-2023, 02:10 AM
Replies: 365
Views: 120,434
Posted By stew'86MCSS396

Re: Repinning TBI to Speed Density TPI

I have no problem seeing any of the attached items in your thread that you started over there. You need to be logged in to that site to see or download any of the attachments there. ...or maybe...
Forum: DIY PROM
10-16-2023, 10:36 PM
Replies: 5
Views: 326
Posted By stew'86MCSS396

Re: runing 2 bar map sensor on 1227747 ecm

My thoughts...no one has really done it so better to start with a ECM that GM already ran it with boost. I'd look into the sy/ty stuff '749 or even a '7730 turbo sunbird.
Forum: TPI
10-16-2023, 10:32 PM
Replies: 14
Views: 683
Posted By stew'86MCSS396

Re: 32-34 lb/hr injectors?

Have you tried https://witchhunter.com/? They have a calculator that converts lb/hr to cc/min. Once you determined the cc/min requirements, you can navigate to their fuel injector page and click on...
Forum: Engine Swap
10-16-2023, 10:26 PM
Replies: 12
Views: 658
Posted By stew'86MCSS396

Re: '89 Corvette TPI engine into an '89 Trans Am

I wouldn't dismiss the possibility of converting to MAP but I'd opt for a '7730 ECM instead of using the underhood '7727. The only other thing that I would like to add is between the years '85-'89...
Forum: DIY PROM
10-06-2023, 03:15 PM
Replies: 4
Views: 437
Posted By stew'86MCSS396

Re: Question about TPI ARAP Bin "Learn Control"

I know nothin' 'bout this...just trying to learn...

Tried searching for ARAP_hac to take a peek at the source code...

FDB $0045 ; 16. AIR/FUEL MODE WORD
;
...
Forum: Power Adders
08-12-2023, 06:04 PM
Replies: 3
Views: 470
Posted By stew'86MCSS396

Re: TTA vs GN

For those that may appreciate reading the article...
http://www.gtasourcepage.com/89ttagnxshootout
Forum: Engine Swap
08-07-2023, 02:20 AM
Replies: 21
Views: 2,007
Posted By stew'86MCSS396

Re: 400 SBC Build

The "6" in the casting number should be a "9" and what your dealing with is a Pontiac engine not a Chevy.
https://www.thirdgen.org/forums/engine-swap/291473-pontiac-v8-swaps.html

If sticking with...
Forum: Transmissions and Drivetrain
08-03-2023, 08:48 PM
Replies: 14
Views: 6,130
Posted By stew'86MCSS396

Re: 2.73 to 3.23 swap, 700r4 Speedo Gear Help

Part of the issue...we don't know what drive/driven gear combination you have but once you determine that, you should be able to figure out what you need....
Forum: TPI
07-10-2023, 04:33 PM
Replies: 36
TPS
Views: 830
Posted By stew'86MCSS396

Re: TPS

Been following this from your other thread...since you started putting this thing together back in '03, has this driveability issue always been an issue or did it run great back in the day then the...
Forum: TPI
07-09-2023, 03:35 AM
Replies: 36
TPS
Views: 830
Posted By stew'86MCSS396

Re: TPS

Not having a scanner, the next best thing is a DVM and to start checking things.

Did you ever check the ohms vs temp on the old/new CTS? If the sensor checked out good against the chart, then...
Forum: Tech / General Engine
07-01-2023, 11:20 PM
Replies: 3
Views: 562
Posted By stew'86MCSS396

Re: Car won’t crank

At the beginning of the video, I can barely get a quick glimpse of the battery volt meter. Can't tell if it's on the low side. Check if the battery is putting out 12.x volts. If it is, check your...
Forum: Cooling
07-01-2023, 11:12 PM
Replies: 5
Views: 609
Posted By stew'86MCSS396

Re: 92 TBI Electric Fan not turning on when hot

Yes. You could simply do a continuity check with a multi-meter between the sensor body and suitable ground preferably the cylinder head or block. Probe light could be used as well. Possibly a bum...
Forum: DIY PROM
06-30-2023, 07:23 PM
Replies: 32
Views: 799
Posted By stew'86MCSS396

Re: Injector Flow Rate in $8D

This is a gray area for me, I just do and don't ask. It appears the injector offsets have been unaltered but I don't see that making such a significant impact on VE in the areas you're asking...
Forum: TPI
06-30-2023, 07:15 PM
Replies: 23
Views: 725
Posted By stew'86MCSS396

Re: SD setup flooding

I still think unmetered fuel is finding its way into the plenum...after the 2 second prime, does it hold at 37 psi (should be more like 43 psi) or does it drop off rapidly???

Out of curiosity...
Forum: Cooling
06-30-2023, 05:38 PM
Replies: 5
Views: 609
Posted By stew'86MCSS396

Re: 92 TBI Electric Fan not turning on when hot

Soooo...since we're talking TBI, the 1227846 ECM doesn't do any controlling of the Efan and solely relies on the Temperature Fan Switch. My understanding is that switch comes on at a uncomfortable...
Forum: Electronics
06-29-2023, 08:56 PM
Replies: 4
Views: 389
Posted By stew'86MCSS396

Re: Sensor diagnosis

TCC and TV cable.
Some good reference pics...ignore that it's from a corvette...
https://www.thirdgen.org/forums/engine-drivetrain-suspension-parts/514991-1987-corvette-700r4-sale.html
Forum: Electronics
06-29-2023, 02:23 PM
Replies: 4
Views: 575
Posted By stew'86MCSS396

Re: Weird switch inside motor

If it's going to the starter solenoid...my guess, remote start switch......
Forum: Tech / General Engine
06-29-2023, 02:41 AM
Replies: 19
Views: 980
Posted By stew'86MCSS396

Re: Some ideas for a stuck bolt?

Out of curiosity what square/size drive tool are we using in that square hole to remove that drain plug. I got a few T5s under the house but too lazy to go into the crawl space to look at what you're...
Forum: Transmissions and Drivetrain
06-29-2023, 02:13 AM
Replies: 6
Views: 787
Posted By stew'86MCSS396

Re: 700r4 pressure switch

Might have something to do with this...
https://www.monstertransmission.com/700R4-Internal-4th-Gear-Lock-Up-Kit--No-4th-Gear-Pressure-Port_p_18706.html
Forum: Tech / General Engine
06-26-2023, 10:26 PM
Replies: 8
Views: 537
Posted By stew'86MCSS396

Re: New fuel pump and car won’t start?

What was the fuel pressure before and after you changed the fuel pump?

Wait a minute...are you saying the gas gauge is indicating E??? :confused:
Forum: Engine Swap
06-21-2023, 03:52 AM
Replies: 1
Views: 563
Posted By stew'86MCSS396

Re: 82 auto s10 2.8L into 86 manual camaro

I'd be somewhat curious to know if the shifter location from the S10 will come out of the same area that your fbody would unless you had plans to swap the tailshafts from one unit to the other.
Forum: TBI
06-20-2023, 02:20 AM
Replies: 4
Views: 482
Posted By stew'86MCSS396

Re: 350 HELP

5.0 54#/h vs. 5.7 61#/h injectors but...it depends if you can determine what has been done to the 350? Better flowing heads, everything is bigger than stock cam, free flowing exhaust, etc. Be nice to...
Forum: TPI
06-19-2023, 04:28 PM
Replies: 23
Views: 725
Posted By stew'86MCSS396

Re: SD setup flooding

Everything on the engine is purdy much stock and should run on a stock tune, correct???

Which ECM are you using...gonna assume that with SD you're using a 1227730 or underhood 1227727 not that it...
Forum: TPI
06-19-2023, 03:01 AM
Replies: 4
Views: 423
Posted By stew'86MCSS396

Re: Headers Custom prom wont start

Is the chip installed on the piggyback adapter in the correct orientation?
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