ecu modification

Submitted: Wednesday, Jul 14, 2004 at 15:05
ThreadID: 14656 Views:1648 Replies:3 FollowUps:2
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Hi all, I have a GQ Patrol 4.2 efi petrol and my wallet keeps getting worked over at the servo. I'm having some extractors fitted this week and was wandering about a chip mod for the ecu. Im not so much after more power or torque just more km's per tank. Can anyone tell me if they have had this done, how much benefit did you get, where did you get it done etc. Any help would be appreciated!!
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Reply By: PerthGQ - Wednesday, Jul 14, 2004 at 16:38

Wednesday, Jul 14, 2004 at 16:38
Pat,
I've got a '96 GQ 4.2 EFI, auto trans and average 15L/100km around town, which I'm pretty happy with. If your mileage is much different perhaps its a tuning issue. Otherwise let me know how you go with any succcesful mods for better economy.
Regards..Keith
AnswerID: 67758

Follow Up By: ersko pat - Thursday, Jul 15, 2004 at 12:07

Thursday, Jul 15, 2004 at 12:07
15L\100!!!! I can't even get thaton trips, more like 20-22 around town....lets hope these strackas' help some. Then a good tune afterwards. thx keith ill keep u posted
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Follow Up By: ersko pat - Friday, Aug 13, 2004 at 20:11

Friday, Aug 13, 2004 at 20:11
keith, pat here again, ive got some econ figures now.... how does 14l/100km sound?? i havent tuned it yet i just wanted to see what the extractors would do first. ill give it a tune in the next week or so and then see how we go.
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Reply By: uppy - Thursday, Jul 15, 2004 at 18:46

Thursday, Jul 15, 2004 at 18:46
Hi ersko pat ive got a 1994 4.2 efi, i get around town about 500 ks and on the open road around 650 -700 on a good day.I use only pulp in the tank ,and use c/control alot .Also Ive got 2 hilcone that seem to work.Every 2 service i replace the plugs.My gq is manual and done around 160,000 km
regards uppy
AnswerID: 67921

Reply By: ersko pat - Saturday, Jul 17, 2004 at 20:24

Saturday, Jul 17, 2004 at 20:24
guys, got the extractors on and boy what a difference.......... i wasn't looking for more power or torque but i sure got some!!! The engine is running much smoother, it revs alot quicker, big improvment in torque and mid range power.
Can't tell you about fuel consumption yet but with the improvements already listed i can only imagine it has to improve...... Exhaust gas sensor was also stuffed!!!
AnswerID: 68188

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