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1 Hour Ago

dktool replied to a thread Help!! Need advice on what is necessary to make my computer work with this cam in GM EFI Systems

I will leave it turned on all the time if that's the case. 9

82 replies | 3917 view(s)

10 Hours Ago

3BBIRDT started a thread Aem 30-0300 datalog in GM EFI Systems

I have my AEM 30-0300 setup on Pin D27, but the readings in Eehack don't match up with my gauge, they are erratic, alot of lean spikes, it's all over...

0 replies | 35 view(s)

12 Hours Ago

Fast355 replied to a thread New question about TH400 kickdown switch in GM EFI Systems

P59 does not have the the code to run it. Also temporarily ran the Proflow 4 ECM. Does not have much in the way of controlling anything. I ran...

6 replies | 123 view(s)

13 Hours Ago

Cadman-iac started a thread Site connection issues in GearHead EFI Forum Support

I'm just curious if it's my problem or if there are issues with the site. I've been unable to connect or login for the last 3 or 4 days, just being...

0 replies | 17 view(s)

13 Hours Ago

Cadman-iac replied to a thread New question about TH400 kickdown switch in GM EFI Systems

I thought I had explained what I wanted to know, but I didn't explain why. So here's the situation. I replaced the relay with a new smaller one...

6 replies | 123 view(s)

14 Hours Ago

1project2many replied to a thread New question about TH400 kickdown switch in GM EFI Systems

I've seen that solution used before. I'm curious why you didn't use the ecm controls.

6 replies | 123 view(s)

1 Day Ago

sherlock9c1 replied to a thread AEM UEGO wideband logging with EEHack in GM EFI Systems

I tried hooking this AEM 30-0300 to eehack without grounding the BROWN (analog negative) wire. EEHack was acting screwy. It seems the best place to...

12 replies | 18840 view(s)

1 Day Ago

Fast355 replied to a thread New question about TH400 kickdown switch in GM EFI Systems

My 87 G20 305 TBI had the ECM controlled kickdown. I took the TBI ECM out of the equation with first a 6.0L swap and then later a L31 350 and added...

6 replies | 123 view(s)

1 Day Ago

dave w replied to a thread p01/p59 manual trans segment swap in GM EFI Systems

Maybe this tread has helpful information:...

4 replies | 139 view(s)

1 Day Ago

Halestorm replied to a thread stock 2000 S10 pcm help please in GM EFI Systems

Thank you for the information and sorry for the delay I've been very sick... As soon as I can stay out of bed for more than an hour I will check...

5 replies | 165 view(s)

1 Day Ago

1project2many replied to a thread New question about TH400 kickdown switch in GM EFI Systems

Many early TBI trucks with THM 400 use the Torque Converter Clutch control at A7 to control a kickdown relay. The easiest way to see if kickdown is...

6 replies | 123 view(s)

1 Day Ago

hazzMatt started a thread Hello from Canada in Introductions

Thanks for adding me to your group ! Currently swapping a 6.0 , Mild cam, Headers, into an 80 Camaro.I used the information provided on this site to...

0 replies | 42 view(s)

1 Day Ago

MO LS Noobie replied to a thread New question about TH400 kickdown switch in GM EFI Systems

Every turbo 400 that I have worked on used an electric solenoid for detent downshift. It takes a fused ignition source voltage that goes to a switch...

6 replies | 123 view(s)

1 Day Ago

Fast355 replied to a thread Help!! Need advice on what is necessary to make my computer work with this cam in GM EFI Systems

Cutting power to the heater circuit is a step backwards and in the wrong dirrection. 02 sensors fail much more quickly when they are not heated. Life...

82 replies | 3917 view(s)

2 Days Ago

MikaelT replied to a thread p01/p59 manual trans segment swap in GM EFI Systems

What I encountered most recently was some swap into a manual vehicule and finding the right calibration with manual was not always easy. so lets say...

4 replies | 139 view(s)

2 Days Ago

Cadman-iac started a thread New question about TH400 kickdown switch in GM EFI Systems

I've always been under the assumption that this truck used a kickdown switch to downshift the transmission to 2nd, but after rewiring the relays for...

6 replies | 123 view(s)

3 Days Ago

scooterwrench replied to a thread BLM decoding in GM EFI Systems

I think PE is a fuel adder in closed loop and a fixed value in open loop. My datalogs show 128 but only in the 100 MAP column. My thought is that...

26 replies | 832 view(s)

3 Days Ago

PlayingWithTBI replied to a thread BLM decoding in GM EFI Systems

I've had to lower my VE tables to keep the PE - AFR from going too rich at higher RPMs so, the 2 are linked somehow.

26 replies | 832 view(s)

3 Days Ago

scooterwrench replied to a thread BLM decoding in GM EFI Systems

Yeah, It will be your open loop tables you will be adjusting for WOT using the WB data.

26 replies | 832 view(s)

3 Days Ago

badgta replied to a thread BLM decoding in GM EFI Systems

I was always under the impression that "VE TABLES" are kind of a "moot point" under W.O.T as the ECM targets the commanded P.E AFR? I mean yeah you...

26 replies | 832 view(s)

4 Days Ago

2xls1 replied to a thread p01/p59 manual trans segment swap in GM EFI Systems

Idle and spark tables are different since there is no need for separate Park/Neutral vs In Gear tables with a Manual. Probably others too that I'm...

4 replies | 139 view(s)

4 Days Ago

2xls1 replied to a thread 5.3 cam tune? DBC 99-02 in OBDII Tuning

How about some details? Actual model year? Truck? Swap? Cam specs? It's not as generic as you seem to think.

2 replies | 127 view(s)

4 Days Ago

dave w replied to a thread 5.3 cam tune? DBC 99-02 in OBDII Tuning

The link has mostly stock tunes, but there are modified tunes too....

2 replies | 127 view(s)

4 Days Ago

NorthernMainer started a thread 5.3 cam tune? DBC 99-02 in OBDII Tuning

Does anyone on here have a tuned bin for their drive by cable 99-02 cammed 5.3? If so I'd very much appreciate getting a copy of it! and also what...

2 replies | 127 view(s)

6 Days Ago

dave w replied to a thread p01/p59 manual trans segment swap in GM EFI Systems

Some tuners start with a manual flash, then "hand pick" the Fuel - Air - Spark engine parameters. Deceleration Fuel Cutoff (DFCO) is different...

4 replies | 139 view(s)

6 Days Ago

dave w replied to a thread Bench programming a LT1 PCM ? in GM EFI Systems

Unfortunately the 1993 LT1 ECM is not a Flash ECM. The 1993 LT1 ECM uses a PROM Chip. ...

24 replies | 24198 view(s)

6 Days Ago

J 0S h e e s h 5582 replied to a thread Bench programming a LT1 PCM ? in GM EFI Systems

hello sorry if this has been covered numerous times i have a 93 lt1 ecm 16159278 i have pigtails from ecm and obd1 connector I'm trying to build a...

24 replies | 24198 view(s)

6 Days Ago

MikaelT started a thread p01/p59 manual trans segment swap in GM EFI Systems

I have been trying to figure out for a while, is there any engine parameter that are different between a stock manual and stock auto calibration...

4 replies | 139 view(s)

6 Days Ago

bigdawwg51 started a thread New Member... I just wanted to stop in and say "Hi" in Gear Heads

Hello everyone, here at GearHead-efi. I wanted to join this forum because it seems to be very informative, and I can use all the help I can get.

0 replies | 70 view(s)