Engine check warning light

[steviez]

Hello everyone,
My 1993 ford bounder 7.5 petrol auto engine warning light came on the other day when I notice it the first time I was on a corner the second time was on a round about and the third time I was restarting it. It was parked up after that, I live in the north of Ireland and am hoping to get it out again before the season is over
Steviez.

[DieselTech39]

Steviez, Could be any number of things. Low coolant, low voltage output from the alternator, low oil pressure or bad sending unit. Check to make sure the belt(s) are in good condition. Check fluid levels for all chassis fluids. Changed the oil regularily?

Do you have access to a code reader or is there a reliable ford dealer or reliable truck shop you can take it to to have the codes checked? A friend who does automotive repair work?

Hard to help to diagnose from this far away. Best of luck on a solution.

[steviez]

Hi and thanks Ken for getting back to me first thing I don't have the codes but am hoping my mechanic can get them but thanks a lot Steviez

[subford]

Not sure if you have a class A (F53) or class C (E350) RV.
As noted above you need to read your codes and the most informative is the CM codes that come after the KOEO codes.
To see your codes just ground the STI wire and turn on the key and count the flashes the MIL makes in the cluster. Other auto makers call the MIL a CEL for some reason.
We will be able to tell you more on the location of the STI wire and help you more when we find out what type RV you have. A class A or C.

[mpaton]

And seeing you're in Ireland with the biggest petrol engine on the island, are you actually running petrol, or is there some form of LPG conversion?

[steviez]

Originally Posted by subford

Not sure if you have a class A (F53) or class C (E350) RV.
As noted above you need to read your codes and the most informative is the CM codes that come after the KOEO codes.
To see your codes just ground the STI wire and turn on the key and count the flashes the MIL makes in the cluster. Other auto makers call the MIL a CEL for some reason.
We will be able to tell you more on the location of the STI wire and help you more when we find out what type RV you have. A class A or C.

Hello Subford
A class and thanks for getting back
steviez

[steviez]

Originally Posted by mpaton

And seeing you're in Ireland with the biggest petrol engine on the island, are you actually running petrol, or is there some form of LPG conversion?

Hello Mpaton
I got it converted almost 2 years ago to LPG its still sore, but I seen the big thing and went over to Scotland and got it. And the whole family just love it there has been a lot of work done on it first job was sealing the roof. After that 6 new tires and then the LPG conversion and then 6 weeks underneath it cleaning painting and waxing the chassis. The inside new carpet and lino and cleaning the roof on the inside took weeks but its coming into shape. I need this sorted asap so I can get back on the road but thanks for asking
steviez

[subford]

Not a 100% sure on a 1993 but the STI wire should be in in one of the two places in the two photos below.

The STI wire is at his thumb in the photo below.




/

[mpaton]

Originally Posted by steviez

Hello Mpaton
I got it converted almost 2 years ago to LPG its still sore, but I seen the big thing and went over to Scotland and got it. And the whole family just love it there has been a lot of work done on it first job was sealing the roof. After that 6 new tires and then the LPG conversion and then 6 weeks underneath it cleaning painting and waxing the chassis. The inside new carpet and lino and cleaning the roof on the inside took weeks but its coming into shape. I need this sorted asap so I can get back on the road but thanks for asking
steviez

So I think you still need to follow through with Subford's advice about treading the codes. While the ECU constantly monitors how the engine and transmission is working, and will provide valuable information about what it thinks is wrong, the ECU also assumes it has total control over the amount of fuel the engine gets. And when it comes to an LPG conversion, it probably doesn't have total control over engine fuel.

So, first question: Can you switch between running on petrol and LPG, or are you locked onto LPG?

If you can run on petrol, does the CEL still happen then?

And what can you tell us about the LPG conversion? Like who makes it, brand and model name, and instructions you got with it. Even after you find these malfunction codes, finding the fix may well involve the LPG conversion.

Michael

[steviez]

hello to everyone
Bill, I had my mechanic look it over and he says it working fine we couldn't get the diagnostic check done. It's a 6 pin and over here there 16pin, if you can tell me what one to buy I will get it. My mechanic was saying that the LPG can cause lights to come on and has done in the past.
steviez

[mpaton]

Originally Posted by steviez

hello to everyone
Bill, I had my mechanic look it over and he says it working fine we couldn't get the diagnostic check done. It's a 6 pin and over here there 16pin, if you can tell me what one to buy I will get it. My mechanic was saying that the LPG can cause lights to come on and has done in the past.
steviez

Bill's post #4 above tells you how to do a test using the 2 connectors you found. These connectors are Ford specific OBD-1 connectors. The 16 pin connector is the OBD-2 connector. If your mechanic can't do the test as Bill describes, then he needs to get something like an Equus 3145 scan tool http://www.amazon.co.uk/Products-EPI...rds=Equus+3145

It may well be that your LPG conversion causes CELs but until you know what is causing your CEL you should assume you still have a problem. You also need to know that this ECU does NOT light the CEL for every code it sees, so there may be codes without a CEL.

Michael

[steviez]

Micheal,
Yes I can it the button at anytime and it works on petrol and I was told it's more than likely the LPG as it tends to get lights flashing and we only have 16 pins over here for the diagnostic check. So I need a 6 pin one which one should I buy ?
steviez

[mpaton]

Originally Posted by steviez

Micheal,
Yes I can it the button at anytime and it works on petrol and I was told it's more than likely the LPG as it tends to get lights flashing

Some of these may be inevitable and some not.

So which LPG conversion do you have?

Do you get the CEL when running on petrol?

Originally Posted by steviez

So I need a 6 pin one which one should I buy ?
steviez

read my post above in which I suggest one you can buy.