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Forum: TPI
04-20-2004, 01:14 PM
Replies: 14
Views: 12,944
Posted By formula350_87

Does it change when you open the throttel? And...

Does it change when you open the throttel?
And you do have to have it connected to the harness when measuring.
Forum: TPI
04-18-2004, 08:05 AM
Replies: 3
Views: 386
Posted By formula350_87

All these problems point to the throttle body...

All these problems point to the throttle body area.
1. Check all mechanics - cables, connections, etc.
2. Check Throttle position sensor (TPS). And not just the closed and wide open redings. TPS...
Forum: TPI
04-17-2004, 06:00 PM
Replies: 66
Views: 2,743
Posted By formula350_87

Actually it's easy to check if these ground wires...

Actually it's easy to check if these ground wires are bad. With ignition off measure the resistance between each wire and the chassis. It should read something close to 0. I think 1-2 Ohms is OK...
Forum: TPI
04-17-2004, 12:55 PM
Replies: 9
Views: 427
Posted By formula350_87

If you have it set to 1000V you will not see...

If you have it set to 1000V you will not see anything because the TPS voltage is in the range 0 - 5V. Change it to something lower, let's say 10V.

Make sure that TPS is still connected to the car...
Forum: TPI
04-17-2004, 09:51 AM
Replies: 14
Views: 12,944
Posted By formula350_87

Measure the voltage at grey(or white) wire at the...

Measure the voltage at grey(or white) wire at the TPS. It should be 5 volts with TPS connected or not. This is a reference voltage from ECM.

Dark blue wire should change approx. from 0.5V to 4.5V...
Forum: TPI
04-17-2004, 09:41 AM
Replies: 66
Views: 2,743
Posted By formula350_87

This "fix" essencially provides another path to...

This "fix" essencially provides another path to the ECM ground rather than fixing the wires to the ECM. Problems with this "fix"? The noise from all electric components (A/C clutch, alternator, etc.)...
Forum: TPI
04-17-2004, 09:28 AM
Replies: 6
Views: 737
Posted By formula350_87

From "TPI Swapper's guide": "Code 34 indicates:...

From "TPI Swapper's guide":
"Code 34 indicates: ECM has seen low air flow for less than 2.5 grams per second (low voltage) for one second when:
Engine is first started
OR
RPM is above 600. TPS...
Forum: TPI
04-17-2004, 09:16 AM
Replies: 66
Views: 2,743
Posted By formula350_87

Here is what I found in TPI book: "Code 33...

Here is what I found in TPI book:
"Code 33 indicates: ECM has seen flow excess of 45 grams per second (above 2.2 volts) for one second when:
Engine is first started
OR
TPS is less than 1/4...
Forum: Tech / General Engine
04-13-2004, 11:35 AM
Replies: 5
Views: 541
Posted By formula350_87

I thought all lifters were solid before 87. How...

I thought all lifters were solid before 87. How can a solid lifter collapse? Just curious.
Forum: Tech / General Engine
04-06-2004, 10:33 PM
Replies: 5
Views: 1,021
Posted By formula350_87

My Formula 87 did the same. Bought a motor/pump...

My Formula 87 did the same. Bought a motor/pump from autozone - problem fixed. Motor/pump is held in the washer assemply (on the firewall) by a clip. It's hard to see though since it's facing...
Forum: Tech / General Engine
04-06-2004, 10:23 PM
Replies: 7
Views: 550
Posted By formula350_87

You probably ment it is shorted to ECM reference...

You probably ment it is shorted to ECM reference voltage that is 5VDC. If it was shorted to ground it would be 0VDC.

Anyway, readings seem to be OK.
Forum: Tech / General Engine
04-05-2004, 07:10 AM
Replies: 20
Views: 585
Posted By formula350_87

My car is TPI. So it's out of my league now. I'll...

My car is TPI. So it's out of my league now. I'll let you know if I find anything else.

Guys with TBIs, can you help him out?
Forum: Tech / General Engine
04-04-2004, 10:24 PM
Replies: 24
Views: 1,398
Posted By formula350_87

I wonder if you were not making good contact...

I wonder if you were not making good contact between multimeter and blue wire all along?

Anyway let's see what the resistance is.
Forum: Tech / General Engine
04-04-2004, 10:11 PM
Replies: 24
Views: 1,398
Posted By formula350_87

I guess it would be real hard to start the...

I guess it would be real hard to start the engine. If you manage to start it it would die the moment you open the throttle.

By the way do you read any code? Chilton's book says that 22 should be...
Forum: Tech / General Engine
04-04-2004, 09:51 PM
Replies: 10
Views: 2,321
Posted By formula350_87

Autozone carries the following p/n: MS93035-1 -...

Autozone carries the following p/n:
MS93035-1 - this is a complete set of gaskets down to the intake manifold. Price $25.99.
MS93160 - This is so called upper sub-set of gaskets (TB, runners, etc....
Forum: Tech / General Engine
04-04-2004, 09:33 PM
Replies: 20
Views: 585
Posted By formula350_87

ECM thinks that it is working with 305 engine. It...

ECM thinks that it is working with 305 engine. It is trying to supply fuel accordingly. Besides the fact that something else might be wrong this one by itself will cause hesitation.

To fix it the...
Forum: TPI
04-04-2004, 09:17 PM
Replies: 3
Views: 532
Posted By formula350_87

Felpro MS93160 - upper only. You can buy it at...

Felpro MS93160 - upper only. You can buy it at Autozone or O'reilly. Seems that same set is ised for 305 as well as 350.
Forum: Tech / General Engine
04-04-2004, 08:58 PM
Replies: 20
Views: 585
Posted By formula350_87

Correct me here if I am wrong. I don't think...

Correct me here if I am wrong. I don't think there is such thing as 350 TBI. So you are using 305 TBI setup on 350 engine. Is it correct? Therefore the injectors might not have enough flow.
Forum: Tech / General Engine
04-04-2004, 08:53 PM
Replies: 24
Views: 1,398
Posted By formula350_87

When you say nothing at blue wire. Does the...

When you say nothing at blue wire. Does the needle move at all? May be even to the left?
Forum: Tech / General Engine
04-04-2004, 08:51 PM
Replies: 24
Views: 1,398
Posted By formula350_87

Ok, Connect the multimeter between black and...

Ok,

Connect the multimeter between black and dark blue. Slowly open the throttle from fully closed to wide open. Whatch the voltage changing (not jumping) from almost 0 to the maximum - almost...
Forum: Tech / General Engine
04-04-2004, 08:42 PM
Replies: 24
Views: 1,398
Posted By formula350_87

There is no white wire at TPS. It has Black, Dark...

There is no white wire at TPS. It has Black, Dark Blue and Gray.
If Grey is what you refer to as white then nothing will change. You have to measure at the arrow of the potentiometer in the...
Forum: Tech / General Engine
04-04-2004, 08:36 PM
Replies: 20
Views: 585
Posted By formula350_87

Seems like it is running lean. 1. Check fuel...

Seems like it is running lean.
1. Check fuel pressure;
2. Fuel filter might be clogged;
3. Fuel pump is dieing;
4. Injectors are clogged.

Sometimes spark plugs can cause same failures.

Does...
Forum: Tech / General Engine
04-04-2004, 08:20 PM
Replies: 24
Views: 1,398
Posted By formula350_87

I don't know much about TBI. However Here is a...

I don't know much about TBI. However Here is a schematic for your car. It's Fig.41 in here:...
Forum: Tech / General Engine
04-04-2004, 07:59 PM
Replies: 22
Views: 845
Posted By formula350_87

Here is a schematic for 92 bird: ...

Here is a schematic for 92 bird:
http://www.autozone.com/servlet/UiBroker?ForwardPage=az/cds/en_us/0900823d/80/1e/ef/19/0900823d801eef19.jsp

It's in the right bottom corner. Ignition switch...
Forum: Tech / General Engine
04-04-2004, 07:26 PM
Replies: 24
Views: 1,398
Posted By formula350_87

I assume you bought a miltimeter. It can measure...

I assume you bought a miltimeter. It can measure voltage in volts (V), current in Amps (A), and resistance in Ohms. When you measure volts make sure that the selector is in position that relates to...
Forum: TPI
04-04-2004, 02:09 PM
Replies: 5
Views: 429
Posted By formula350_87

IAC might have been set wrong way. As a result...

IAC might have been set wrong way. As a result throttle air bypass does not provide enough air. Can you tap gas pedal when cranking? Does it make a difference? If so - it's IAC.

Another...
Forum: TPI
04-04-2004, 02:02 PM
Replies: 3
Views: 407
Posted By formula350_87

Busted Temperature sensor. I think it should go...

Busted Temperature sensor. I think it should go to closed loop when temperature is above 110F or something like this. I also think that there might be two T sensors one for the ECM and another for...
Forum: TPI
04-04-2004, 10:31 AM
Replies: 3
Views: 424
Posted By formula350_87

The ECM expects to see MAF voltage to be within...

The ECM expects to see MAF voltage to be within certain range. This range depends on few other sensor readings. When engine is cold it depends on TPS (throttle position sensor) and IAC settings. IAC...
Forum: TPI
04-04-2004, 10:03 AM
Replies: 4
Views: 359
Posted By formula350_87

It would not hurt to have an engine in the car...

It would not hurt to have an engine in the car too.:)
Forum: TPI
04-04-2004, 09:59 AM
Replies: 4
Views: 627
Posted By formula350_87

Code 42 - EST (electronic spark timing) suggests...

Code 42 - EST (electronic spark timing) suggests that there is a problem with ignition. I would check the following:
1. Fouled spark plugs;
2. Spark quality (should be blue in color). There are...
Forum: Tech / General Engine
03-25-2004, 11:50 AM
Replies: 10
Views: 610
Posted By formula350_87

To isolate which belt is the problem you might...

To isolate which belt is the problem you might get belt conditioner in Autozone and spray a little on the belt. One belt in a time. If the squeel goes away - that's the one. If not it's something...
Forum: Tech / General Engine
03-25-2004, 11:33 AM
Replies: 20
Views: 10,600
Posted By formula350_87

Distributor? Worn out cap/rotor.

Distributor? Worn out cap/rotor.
Forum: Tech / General Engine
03-25-2004, 11:29 AM
Replies: 1
Views: 447
Posted By formula350_87

Intake Manifold Gasket P/N

I am getting ready to replace my intake manifold. Just want to make sure that I get the right gasket.

My car is 87 Formula with 350 TPI engine.

I am getting Felpro gasket set p/n MS930351. Is...
Showing results 1 to 33 of 33


 
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