Lexus V8 in surf died....

[cat007]

Hey all,

A mate of mine has a Lexus V8 in a surf. Bought it that way. He's really onto it (being a marine engineer type), but is baffled by electricity.

Basically - his partner said there were a few small "pops" and then it died.
When jumping 12volts to the fuel pump, it runs, but like a pile of sh*t and flooring it, it pings and coughs and sounds like its running on 4 cylinders.

Do these engines (early model we think) run a fuel pump resistor?
Also when the surf was going - it was gutless as hell. Not sure if that means anything?

[thegreatestben]

originally engine would've had a seperate ecu.

[RedMist]

What ECU is it running?

[Rob]

Could be the air flow meter

[cat007]

What ECU is it running?

Just standard I assume - Soarer we think.....

[cat007]

Could be the air flow meter

Really? The fuel pump doesnt turn on though - and when he 12 volts it, the engine runs, but runs like a sack of *something*......

[cat007]

Could be the air flow meter

He has swapped AFM to try and eliminate the issue of it running purely, i.e. low power etc but hasn't swapped the AFM since the complete failure....

[ee904age]

Could be the air flow meter

Greed. IIRC the AFM controls the fuel pump to a certain degree, When the AFM reads no airflow it cuts the fuel?

[rollaholic]

in my experience toyotas run if the AFM is bung, just not well

[mr30%jr]

they do run but if the fuel pump switch is facked too they wont

you pretty much cant rev them

[cat007]

they do run but if the fuel pump switch is facked too they wont

you pretty much cant rev them

It revs ok - just sounds like a sack......

Sounds like its a "big gay 4 cylinder" - smooth still - but not quite a V8.....

[FXGTV]

Yup, sounds like AFM.

[lucasthefallen]

soarers also have a fuel controll computer ( located in passenger rear quarter window trim ), they are common to shite themselves.

[cat007]

soarers also have a fuel controll computer ( located in passenger rear quarter window trim ), they are common to shite themselves.

Ah - well there's a "computer" type unit, about the same size as a window controller unit etc, that they previous owner has written "fuel pump" on. I'm guessing it's something to do with that. Will test tomorrow....
Thanks all.....

Is there anyone in the north shore area who knows these engines at all? The car's on the north shore (albany area) - would really appreciate it if someone could come take a nosey. tomorrow (Sunday)......

[1hypo3]

have you checked for DTCs

[cat007]

have you checked for DTCs

DTC?

[lucasthefallen]

have you checked for DTCs

DTC?

diagnositc trouble code.

[cat007]

have you checked for DTCs

DTC?

diagnositc trouble code.

Do they have that? Where the Engine Check Light will flash giving the code? hmmmm if so - I'm not even sure the guy that installed the engine hooked up the engine check light. I'll ask tonight.....

If he hasn't - is it hard to hook one up in the mean time? Or is there any other way of doing the code test?

[Mr.Phreak]

Depending on how much was butchered fitting it, it could be anything

When jumping 12volts to the fuel pump, it runs, but like a pile of sh*t and flooring it, it pings and coughs and sounds like its running on 4 cylinders.

Sure it isn't running on 4?? Quite common for coils and ignitors to die

[cat007]

Depending on how much was butchered fitting it, it could be anything

When jumping 12volts to the fuel pump, it runs, but like a pile of sh*t and flooring it, it pings and coughs and sounds like its running on 4 cylinders.

Sure it isn't running on 4?? Quite common for coils and ignitors to die

It IS running on 4 - well sounds like it - but the fuel pump doesnt turn on unless you hardwire it.....