Fs Ze And The Story of the Uncontrollable Ping
- Thread starter lostmybook
- Start date
tweety2300
Member
- :
- 2001 mazda protege mp3
Or Atleast get gasket maker. The fsze came with a 2 piece 4-2-1 header didn't it?
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- 2003 Protege5
Bleh! Sorry, meant cams. didn't mean to talk about any manifold at all. Yes, the FS ZE did come with 421 headers. It came with the engine my mechanic got, but since he used the DE headers he returned it to his supplier as some sort of core charge. Would love to get my hands on those. The only other OEM 421 headers I've been able to see at a good price were in some New Zealand eAcution site. He was selling for like 50, but shipping would have been killer.
So would a bad MAF and upsteam O2 sensor cause for lean mixtures? Fuel pump I'm sure would, but again, no CEL for that.
Seriously dude just pony the **** up and do it properly. Want the engine to last do something about it.
MAFs on our cars are basically unheard of dieing. Get some better headers that will help solve part of your problem and think about getting a better mechanic.
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- 2003 Protege5
This is just a hunch but I don't think they're any different. the MAF just tells the ECU how much air is being inducted right? The FS ZE is not so much of an extreme difference from the DE that I don't see them needing different MAF sensors; though from what I've seen of my ZE fuel pressure regulator, the ZE was designed to run a little leaner than the USDM DE. Since my ZE was from older (mid-late 90's) models, the MAF sensor part numbers could be different, but in terms of performance, would probably be identical to our DEs. This is what I saw with the fuel injectors, different numbers, same performance and looks.
By the way, Rico. Did you get an ID numbers on the ZE intake and exhaust cams?
By the way, Rico. Did you get an ID numbers on the ZE intake and exhaust cams?
tweety2300
Member
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- 2001 mazda protege mp3
Umm the ze is for 01-03 and they run richer due to higher compression
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- 2003 Protege5
There are 3 versions of the FS ZE, all of which were produced in different years (except maybe the Mazda Speed version). I've talked about it with "theMAN" here in the forums, and also confirmed it through protegefaq. Look here: http://www.protegefaq.net/engine.html#FS-ZE
But I stand corrected, because the older version of the ZE I have was from the late 90's early 2000's, not the mid-late 90's as I said. As for the ZE running richer, then thanks for correcting me! It's just that since this I've found out that the ZE fuel pressure regulator that I was talking about produced less pressure. I thought, less pressure; leaner mixture. Also, I noticed my car produced more power, when I reset the ECU for the pre-cat code, than when the CEL came back ON for the pre-cat, which like you said, would make it run richer. So I thought, "hey maybe it's supposed to run lean but US fuel is too low of an octane." Then again, these might just be deranged deductions...
But I stand corrected, because the older version of the ZE I have was from the late 90's early 2000's, not the mid-late 90's as I said. As for the ZE running richer, then thanks for correcting me! It's just that since this I've found out that the ZE fuel pressure regulator that I was talking about produced less pressure. I thought, less pressure; leaner mixture. Also, I noticed my car produced more power, when I reset the ECU for the pre-cat code, than when the CEL came back ON for the pre-cat, which like you said, would make it run richer. So I thought, "hey maybe it's supposed to run lean but US fuel is too low of an octane." Then again, these might just be deranged deductions...
When it gets crappy fuel, it keeps the injectors open a little longer and pulls timing to help reduce pinging and keep the engine safe. Problem is it can only do so much.
Or at least that's what happens when we get some crappy 98 here.
tweety2300
Member
- :
- 2001 mazda protege mp3
But he's using a protege 5 ecu, I'm not sure how much timing it will pull with it being made to run 87, or do you have the mp3 ecu?
tweety2300
Member
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- 2001 mazda protege mp3
And btw take themans words over mine he knows way more than I do
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- 2003 Protege5
Yeah what is he? Is he an engineer for Mazda or something? It's amazing how much stuff he knows. Anyways, thanks Rico, how about the exhaust cam?
Yes, I'm running MP3 Reflash, which was designed for premium (91 here) right? Ice, I would LOVE to get my hands on some readily available 98 octane. How much is the fuel over there? I totally forgot about the timing retardation, makes sense...
Yes, I'm running MP3 Reflash, which was designed for premium (91 here) right? Ice, I would LOVE to get my hands on some readily available 98 octane. How much is the fuel over there? I totally forgot about the timing retardation, makes sense...
tweety2300
Member
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- 2001 mazda protege mp3
You can get 98 at a local track, but the mp3 ecu probly doesn't make adjustments with fuel higher than 91
Maxx Mazda
Contributor
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- Stock P5
You're running a high compression engine, with even MORE advanced timing?
BAD idea...
BAD idea...
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- 2003 Protege5
Hey guys,
still trying to narrow this things down. Sort of learned to live with it (avoiding driving behavior that causes pinging as much as possible). But I put on my ZE manifold today finally and found this...
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I've read that this can be a sign of a failing/failed knock sensor. Is it time for a new knock sensor?
still trying to narrow this things down. Sort of learned to live with it (avoiding driving behavior that causes pinging as much as possible). But I put on my ZE manifold today finally and found this...
I've read that this can be a sign of a failing/failed knock sensor. Is it time for a new knock sensor?
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