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5.0l runs like poo 

 

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 Post subject: 5.0l runs like poo
Posted: Tue Sep 09, 2008 11:13 am 
Stock as a Rock
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Joined: 7th May 2008

Location: ipswich
QLD, Australia

i am considering takin my car to the mechanics as it isnt running the best and i cant figure out what seems to be the problem as i dont have the nesicary equipment to diagnos the problem.

well this is where it starts. about 2 moths ago i took my car down to geartouque to get the gearbox rebuilt (stage 2 rebuild and 2200 rpm stall converter) all goes well except that now that the transmission isnt slipping like all hell the engine appears to be lacking considerably in power.

before the rebuild i had a chip onstalled in the computer but i took it out coz it made no difference to power at the time

once i got the car back i played around with the timing and got it to where it performed the best. i then changed over to premium unleaded as it pinged the least altho it sometimes stil does atm.

i have now changed my fuel pump to a bocsh 03 or 04 not sure which one it is as i thort that my fuel pump was rooted. it does perform a bit better now altho appears to lean out stil. i have got new spark plug, and leads also

i have perchased a fuel pressure regulator to up the fuel pressure but i am still waiting for it to arrive

i have tryed reinstalling the chip again but it fails to work properly and idles realy roughly and runs really rich.

i have also swapped in another ecu that has been repaired and it made no difference. atm under full acceleration it losses power and revs die off. take off it splutters up to about 2 grand and after about 4 grand power dies off. only half decent acceleration is under 1/4 to half thorttle

what else should i check before sending it to the mechanics?
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Posted: Tue Sep 09, 2008 4:21 pm 
Getting Side Ways
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Age: 46

Posts: 3763

Joined: 25th Nov 2004

Gallery: 6 images

Ride: EFII 5.8 NOS TerroristGhia

Power: 274 rwkw

Location: Sydney Australia
NSW, Australia

Check the MAF, and have the FTI looked at, and lastly check and replace the fuel filter. Hope that helps
Brett

 

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The Terrorist ED Retired due to RUST.
The TerrosistGhia, EF Ghia 351 EFI 5 Speed.
Millennium Falcon, Sleeper EL DOHC 6 Speed Manual EFI LPG
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I didn't Vote for Multiculturalism, DID YOU!!!

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Posted: Tue Sep 09, 2008 7:48 pm 
Stock as a Rock
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Posts: 117

Joined: 7th May 2008

Location: ipswich
QLD, Australia

what is a FTI?
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Posted: Tue Sep 09, 2008 9:29 pm 
Getting Side Ways
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Age: 46

Posts: 3763

Joined: 25th Nov 2004

Gallery: 6 images

Ride: EFII 5.8 NOS TerroristGhia

Power: 274 rwkw

Location: Sydney Australia
NSW, Australia

Sorry mate, i meant TFI, the ingition pack on the side of the distributor. I may have burnt out or expired for whatever reason.
Brett

 

_________________

The Terrorist ED Retired due to RUST.
The TerrosistGhia, EF Ghia 351 EFI 5 Speed.
Millennium Falcon, Sleeper EL DOHC 6 Speed Manual EFI LPG
Member#1131
I didn't Vote for Multiculturalism, DID YOU!!!

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Posted: Wed Sep 10, 2008 11:45 am 
Getting Side Ways
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Age: 38

Posts: 661

Joined: 14th Jan 2007

Ride: T1 TE50 P01

Location: Perth NoR
WA, Australia

Go through and check that when the box was out they haven't upset any wiring, check everything is plugged in, all earth leads are on and tight, things like that. And the TFI module, MAF as Brett has suggested. It could also be a coil starting to fail, or perhaps leads/Distributor cap...

 

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TE50 T1 P01
200kw 5.0L, T5, Koni shocks, King S/Lows, Whiteline swaybars, DBA 4000 rotors, Acron CAI, 80mm Accufab TB, Difillipo headers & cats, twin 2.5" & Aerochambers, 3.91 LSD.

To Come:
Long rod 306, TFS 11R 205cc heads, SHP camshaft, 1.72 R/R, ported TFS Box R, 400hp NX SHO kit...

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Posted: Wed Sep 10, 2008 12:40 pm 
Smokin em up
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Age: 64

Posts: 225

Joined: 9th Nov 2004

Ride: EDV8 Fairmont

Location: perth
WA, Australia

Check Hego earth connection either on bell housing or rear of intake.
Richie

 

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1993 ED F/mont 5.0L, Auto, Edelbrock RPM's, CompCam XE276HR, Crane Gold Race 1.7's, Edelbrock Performer, 75mm T/B, MAP, 42lb , GenIII coils, PH4000's , Twin 2.5", Thermos & underspeeds, 3.7 LSD, 2800 stall and MoTec M800, 372fwhp @ 5400rpm & 387 ft-lb @ 4400 rpm.

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