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I apologize about the thread jack but search brought me here.

I have a AEM series 1 in my R34 and I'm replacing it with the Haltech PP unit. I know Haltech has a lot of capabilities but how do I unlock it's features?

In other words, if it can control boost then how can I change between HIGH and LOW settings? How do I change between vehicle maps, etc?

dumb question --> Can the Haltech keep the engine running for XXX seconds/minutes after removing the key (i.e. timer mode)? Their website didn't say so but I want to make sure.

  • 6 months later...

Ok so the car is going back into the tuners monday to have a look at the tune, as the problems that I have described that werent appearing on the dyno the other day. But to overlook it being the car, I plugged my spare normal power fc I have sitting here in with the AFM and the car drove perfect today. The car will be looked at for free. Although poeple are saying to go with a different tuner and why ditch the proven setup, if im paying the cost of getting another tune elsewhere....then I want a a much newer, better ecu to be tuned.

I wont go the normal power fc with afm because is A; the cost Nismo items are 700-900 or the z32s are 600 with an 600-800 piping kit. and b; I had one of my afm's on my gtr die already and I dont wish to take that risk again for the tune or replacement afm cost.

If im spending that much money on getting AFM's with piping, then it makes more sense to buy the haltech or vipec/link for similar money, with 32x32 mapping, much more features and generally 10 years more technology than the aging power fc. I love my normal power fc, but it just seems silly spending that much money on the intake system when I could have a newer more mappable ecu for the same/less cost without afm.

I have been reccomended the haltech by my tuner and many others in my area. I will keep an update on whats happening.

So do you have your Haltech working with the E-Flex sensor now or is it simply a switch between 98 and E85 and nothing in between ?

Replaced my DJetro PFC with a Vipec plug in. Runs very smooth on and off boost. Factory case and position draws no unwanted attention. Runs 3 fuel tables for E-flex, 98ron and drum E85.

Make sure you get the air-con relay installed. And im not sure if mine is a isolated case but i was getting a dirty TPS signal from the vipec to the 4wd HICAS computer causing my 4wd to drop out.

And im not sure if mine is a isolated case but i was getting a dirty TPS signal from the vipec to the 4wd HICAS computer causing my 4wd to drop out.

I had the same issue with my Link plug in. All fixed now!

I had the same issue with my Link plug in. All fixed now!

I applied a filter to the signal but now the 4wd computer only sees about 87% Throttle position, how did you fix yours?

I applied a filter to the signal but now the 4wd computer only sees about 87% Throttle position, how did you fix yours?

Im 95% sure you have to bridge a cable. I'll find out exactly what they did and PM you.

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