FAQ-Parts Required

[Bill USN-1]

We are referring to the 88-91 GM TBI-throttle body injection systems. The primary system being from a truck, van, or astro van with 4.3 or larger engines and using the 1227747 ECM. If you do get the 4.3 v-6 ECM, you will need to replace both chips in it with the v-8 chips. The v8 limphome/netres chip/calpack is marked 16060837. Order part number 16060836.
The v6 netres part number is 16051637.
The number on the chip that I had is 1 number different due to it being sold in the plastic carrier!!!
Use,
GM parts, GM parts online, Chevy parts, new GM parts
Or
GM auto parts at wholesale
Or
GM parts direct: your direct source for genuine GM parts

GM part # 16060836
category: emission control system hardware
pack qty: 1 core charge: $0.00
GM list: $21.07
our price: $10.54
Description: calibrati

you May find some 87's and some 92's with the same system so look close.
As a secondary you can use the 1228746 computer from the cars but will require an iat sensor and a different chip than the 7747.
If you are pulling the system yourself then pull everything off the motor that the harness is attached to! You can throw the unneeded parts away later.

Basic system:
1. Computer- better known as the ECM-engine control module. 1227747 or 1228746 you will need someone to program a chip for you to optimize the computer to your engine.
If you don't know what engine your computer came from, see the attached file below.
You will need the 3 or 4 letter bcc-broad cast code.

2. Throttle body- tb- the 4.3, 5.0 and 5.7 tb's are all the same cfm with 1 11/16" bores. The injectors are different sizes.
The 454 is larger with 2" bores.
I would recommend a tb from about the same size engine or larger. 304/345 use 5.0/5.7. If you run a cam/springs and headers then maybe the 454 tb. 392 can use the 350 or 454 tb.
Our motors turn so slow that you can actually tune a 345 to the 305 system.

Here's where to look for the part number.

Injector sizes-
color code black/white
engine 2.8l
flow lbs/hr @ 13psi 33
TBI bore 35mm
GM part # 5235430

color code yellow/blue
engine 4.3l
flow lbs/hr @ 13psi 45
TBI bore 43mm
GM part # 5235203

color code green/white
engine 5.0l
flow lbs/hr @ 13psi 40
TBI bore 43mm
GM part # 5235279

color code orange/black
engine 5.7l pu
flow lbs/hr @ 13psi 61
TBI bore 43mm
GM part # 5235206

color code yellow/brown
engine 5.7l copcar
flow lbs/hr @ 13psi 65
TBI bore 43mm
GM part # 17084327

color code blue/black
engine late bb pu
flow lbs/hr @ 13psi 80
TBI bore 51mm
GM part # 1708430

color code d red/d blue
engine early bb pu
flow lbs/hr @ 13psi 90
TBI bore 51mm
GM part # 5235231

3. Wire harness-pull from any donor vehicle above. It will need to be modified to fit your application.

4. Temp sender-cts pull from donor or buy new.

coolant sensor approximate resistance specifications:
177 ohms @ 212 deg. F. Or 100 deg. C.
241 ohms @ 194 deg. F. Or 90 deg. C.
332 ohms @ 176 deg. F. Or 80 deg. C.
467 ohms @ 158 deg. F. Or 70 deg. C.
667 ohms @ 140 deg. F. Or 60 deg. C.
973 ohms @ 122 deg. F. Or 50 deg. C.
1188 ohms @ 113 deg. F. Or45 deg. C.
1459 ohms @ 104 deg. F. Or 40 deg. C.
1802 ohms @ 95 deg. F. Or 35 deg. C.
2238 ohms @ 86 deg. F. Or 30 deg. C.
2796 ohms @ 77 deg. F. Or 25 deg. C.
3520 ohms @ 68 deg. F. Or 20 deg. C.
4450 ohms @ 59 deg. F. Or 15 deg. C.
5670 ohms @ 50 deg. F. Or 10 deg. C.
7280 ohms @ 41 deg. F. Or 5 deg. C.
9420 ohms @ 32 deg. F. Or 0 deg. C.
12300 ohms @ 23 deg. F. Or -5 deg. C.
16180 ohms @ 14 deg. F. Or -10 deg. C.
21450 ohms @ 5 deg. F. Or -15 deg. C.
28680 ohms @ -4 deg. F. Or -20 deg. C.
52700 ohms @ -22 deg. F. Or -30 deg. C.
100700 ohms @ -40 deg. F. Or - 40 deg. C.

5. O2-oxygen sensor- you could pull from donor but a new one is cheap. 1 wire sensor will work fine. The universals just splice onto the wire from the harness.
For headers I recommend a 3 or 4 wire sensor. They have a built in heater to keep the sensor hot when it is mounted down in the collector.

To mount the o2 sensor you can buy the regular o2 bung or it they are not avail I use the 18mm sparkplug antifouler cut in half.

Summit racing
sum-g2990 $4.88

Motormite spark plug non-fouler: help!®; 18mm gasket seat; 2 per package 42009

 

[Bill USN-1]

6. Fuel pump- you have a choice to modify your tank for an in tank pump or mount one external to the tank.
For inline there are 3 choices I recommend. E2000, e2182 and e8248. See below.............

I normally use the masters e2182 from az. $75 and I always run a fram g-3 filter before the pump.
For filters: fram g3=3/8, g2=5/16, g1=1/4 hose diameter.

Here is the 1989 Ford f250 frame pump. E2000

master electric fuel pump:
part number: e2000
this product fits the following vehicles:

1985 Ford f-250 pickup
v8 5.0 liter FI - 302 cid vin n o.h.v.

1986 Ford f-250 pickup
v8 5.0 liter FI - 302 cid vin n o.h.v.

1987 Ford f-250 pickup
l6 4.9 liter FI - 300 cid vin y o.h.v.
L6 4.9 liter FI - 300 cid vin y o.h.v.

V8 5.0 liter FI - 302 cid vin n o.h.v.
V8 7.5 liter 4bbl - 460 cid vin l o.h.v.

V8 7.5 liter 4bbl - 460 cid vin l o.h.v.

1988 Ford f-250 pickup
v8 5.8 liter FI - 351 cid vin h o.h.v.
L6 4.9 liter FI - 300 cid vin y o.h.v.

V8 7.5 liter FI - 460 cid vin g o.h.v.
V8 5.8 liter FI - 351 cid vin h o.h.v.

L6 4.9 liter FI - 300 cid vin y o.h.v.
V8 7.5 liter FI - 460 cid vin g o.h.v.

V8 5.0 liter FI - 302 cid vin n o.h.v.

1989 Ford f-250 pickup
l6 4.9 liter FI - 300 cid vin y o.h.v.
V8 7.5 liter FI - 460 cid vin g o.h.v.

V8 5.0 liter FI - 302 cid vin n o.h.v.
V8 5.8 liter FI - 351 cid vin h o.h.v.

V8 5.8 liter FI - 351 cid vin h o.h.v.
V8 7.5 liter FI - 460 cid vin g o.h.v.

2182 application chart!!
Master electric fuel pump:
part number: e2182
this product fits the following vehicles - click on a vehicle to see detailed engine information.

Fiat
1981 124
1981 - 1983 x-1/9
1981 brava
Ford
1987 - 1991 country squire
1983 - 1986 ltd
1987 - 1989 crown victoria
lincoln
1980 - 1982 continental
1982 - 1989 town car
1980 - 1983 Mark vi
mercury
1980 - 1982 colony park
1980 - 1989 grand marquis
1984 - 1991 colony park
1980 - 1982 marquis

autozone/partsamerica...
Master fuel pump for a 1987 Ford crown victoria

unit price: $70.99
core value*: $0.00
part no.: e2182
weight: 2.65 lbs.
Warranty: 1 yr

master electric fuel pump:

part number: e2182
this product fits the following vehicles:

1987 Ford ltd crown victoria
v8 5.0 liter FI - 302 cid vin f
v8 5.0 liter FI - 302 cid vin f

v8 5.0 liter FI - 302 cid vin f

1988 Ford ltd crown victoria
v8 5.0 liter FI - 302 cid vin f
v8 5.0 liter FI - 302 cid vin f

v8 5.0 liter FI - 302 cid vin f

1989 Ford ltd crown victoria
v8 5.0 liter FI - 302 cid vin f
v8 5.0 liter FI - 302 cid vin f

v8 5.0 liter FI - 302 cid vin f

1990 Ford ltd crown victoria
v8 5.0 liter FI - 302 cid vin f

1991 Ford ltd crown victoria
v8 5.0 liter FI - 302 cid vin f

Looks like master has finally came up with a universal kit. It's the same pump with standard barb fittings. It'll work fine but looks like it cost a little more since it has the mounting ubolts.

price:$127.99

part number: e8248
weight: 1.8 lbs
warranty: 1 yr
contents: 2 hex nuts, 2 lock washers, o-ring, hose clamp, screw with lock washer, mounting bracket, vinyl cap, terminal
fitting size: inlet -.37, outlet -.375
fitting type: inlet - hose barb, outlet - hose barb
gallons per hour: 60-70
pressure rating: 110-120 psi
shipping information: overnight and two day shipping are not available for po box, apo/fpo/dpo or us territory addresses

7. Fuel pump relay- from donor vehicle with the harness. Or you can use an additional bosch relay.

8. Pwr relay- I use the small bosch style aux lighting relays from az about $4 I think they are called baja's.

9. Adapter plate for the tb- you can make one (see attachments) or buy one.
Spreadbore 4v- Holley
17-41

transdapt
2206 and 2207
squarebore 4v- Holley 17-45

2 barrel- Holley 17-47

transdapt 2204 and 2205


10. Distributor/est-electronic spark timing- for FI you will need to decide if you want a complete conversion (fuel and timing) or partial (fuel only).
For fuel and timing you will need a distr with a magnetic pick up. You have 3 choices.
A. The duraspark conversion. Ds distr conversion has the est mounted external on a metal heat sink.
B. The small cap efi distr. Small cap est is mounted internal. This distr is made by grafting a GM upper onto an IH lower distr by a machine shop.
C. The mopar conversion using a mopar pickup and either a Holley or ds reluctor.

For the fuel only conversion you will retain your stock distributor but will need a special filter to run between your ignition and the computer.

Est

11. Map-manifold absolute pressure sensor- this senses the change in manifold pressure. It usually is mounted on a plate, bolted to the intake manifold. You can modify the plate and remount it on the IH manifold or make a plate and mount it on the firewall.

a 1 bar map sensor reports barometric pressure times one, which is approximately 14.7 psi or 30in/hg (inches of mercury). As an example, a typical three wire map sensor has 5 volts and ground to power the circuit. The signal circuit, or return voltage to the computer, is about 4.5 volts at barometric pressure of 14.7 psi; this measurement is taken at key on engine off. The sensor can withstand about 1.5 bar of pressure, but the return voltage will peak out at about 4.8 volts. This type of sensor is designed for a normally aspirated engine to read a negative pressure, or vacuum, at a typical barometric pressure.

Testing
http://www.autozone.com/az/cds/en_us...rinfopages.htm

This is the voltage to pressure table for a standard 1-bar map...
Volts, kpa
0.00, 00
0.30, 10
0.60, 20
1.10, 30 (approx 20 inch mercury vacuum)
1.70, 40
2.70, 50
3.30, 60
3.80, 70 (approx 10 inch mercury vacuum)
4.40, 80,
4.90, 100 (no vacuum; full atmosphere)

 

[Bill USN-1]

12. If using the 1228746 ECM You will also need the iat. Inlet air temp sensor off the air cleaner.

options: Programming chip May be required to prevent ses light if not used.
1. Knock sensor- screws into the side of the engine in front of the starter. It screws into the water drain plug hole. Get from donor.
If you are not going to program the chip then I recommend you run the knock and esc.

Here's a short list of knock sensors and esc's

esc module(GM #)..knock sensor(GM #) ..known applications

16052391 .............10456287 .................5.0l v8
16052401 .............10456288 .................5.7l v8
16128261 .............10456288 .................5.7l v8
16065711 .............10456288 .................4.3l v6, 5.7l v8
16128251 .............10456288 .................4.3l v6, 5.7l v8
16131171 .............10456288 .................7.4l v8



2. Knock control- esc-electronic spark control. This sends the signal from the knock sensor to the ECM to reduce the timing if it hears a ping.

3. Vehicle speed sensor- vss sends the ECM the cars speed. Jags that run (jtr) sell an aftermarket vss that screws right onto the transfercase between it and the speedometer cable. Good for smooth decelleration and also for cruise control input on later systems.
more options

1. The two-pulse square unit for all passenger car TBI installations, all computer controlled carbureted engines, and 1985–1989 tpi engines. 7/8-18 thread, .104" square drive.

4. Egr-exhaust gas recirculation solenoid- if you need to run emissions on your Scout.

Recommended coils to use.
First would be the stock TBI epoxy core coil.

Then I would say the Ford tfi coil. It's supposed to have a hotter spark than the GM coil.

To look up replacement parts go to www.partsamerica.com Or rockauto auto parts And use an 88-91 Chevy 1500 with a 350 automatic.

Fuel pump try an 89 Ford f250.

Or for used parts your options are ebay - new & used electronics, cars, apparel, collectibles, sporting goods & more at low prices I use a guy named steve for sets of sensors or parts I don't want to pull myself. His ebay username is ragged and he has his own ebay store now.

Or for a complete junkyard network on the web.
car-part.com--used auto parts market
Use the same vehicle for look up.

 

[Bill USN-1]

Attachments.