drifter_d

10psi.... nice :D

adrian-1

I couldn't really tell.
I was taking it easy the last month with the emanage in.

ScudRunner

Sweet, glad it's working for you. FWIW, I was running 11 or 11.5 psi with no trouble for the day that I had the car.

PUR NRG

I'm getting some conflicting information regarding spark plugs.

According to Scott, the #9 RX-7 plugs (no electrode per se, uses a cross-hatched dome) will solve my detonation issues since that's what he used when developing his maps. He recommends using them in both leading and trailing positions.

According to Rick (of Rick's Rotary), he actually uses #7 RX-8 plugs in the leading and trailing positions in his RX-7. Gapped to 0.030", they work fine for street use at 14psi boost. He doesn't recommend them for track use where they can overheat (and therefore lead to detonation) but says they are perfectly fine for blipping the throttle on the street.

Rick does not believe changing plugs will affect my pinging issue. Does anyone have an opinion they would care to share leaning one way or another?

ScudRunner

I am of the opinion that you roll with the opinion of the guy who built the product you are troubleshooting first. Plus, I have read many times and in many places that colder plugs can help with issues of pinging/detonation. And #9 plugs are colder. Guess you could run #9 RX-8 plugs al the way around and split the difference.

rkostolni

Colder plugs will help with detonation, but that tells me that the map is not running with very much of a safety margin if your pinging with only 5-7psi.

drifter_d

11 - 11.5 psi... even nicer.

TORacing

Scott called me today to check everything before he shipped my unit out and he asked me about the plugs and I went ahead and had him add a set to my order. I had intended on replacing mine anyway because they seemed pretty fowled up because I was getting some random misfires. Well my interceptor should be here soon, before the weekend, and tomorrow I am getting my new ACT 6 puck clutch installed , so this weekend will be lots of fun!

rotarygod

You guys that are getting CEL's are going to keep getting them. In order to not get them, the car can't be running as rich as it is. If you lean it out, you will probably blow it up under boost. You can make the engine work fine but as long as the stock ecu is still on the car, it will want to see a certain a/f range. An O2 simulator will no longer allow you to monitor your a/f ratios to see if there are any other issues. Get a Canscan and reset the ecu before you go get inspected. Do it in the parking lot. It'll be fine. If you can't live with a simple CEL, take the turbo and ecu off and put the car back to stock. Can't make anyone happy anymore. Not sure I want to even finish the Megasquirt ecu. It wires up the same basic way and the same thing will happen. At the very least I'm not sure I want to make it public info. I want people to understand how things work before they bitch about them.

PUR NRG

Well and good, but some people were under the impression that the interceptor would not result in any CELs. I agree it's important to set expectations up front so people don't have any mistaken impressions. But what happens when expectations are set and aren't met? [shrug]

I'm continously getting the following two CELs:
P0300 Random/multiple cylinder misfire detected
P0410 Secondary air injection system malfunction

I have a feeling the first is detonation, but I don't know what the second means.

MazsportScott

The first code is a misfire detection. Although it could be detonation, this code is also common from the system running too rich. A misfire is occuring and the factory knock sensor hears the noise in the combustion chambers and is letting you know. Removing the factory N/A plugs and switching to the colder (harder to foul) surface gap style may resolve that. Of course, wideband tuning is still required to get the most from your setup. The spark plugs we prefer are the traditional plugs we have used for forced induction street cars for years. BTW, Mazda used this style of spark plug on the Turbo2 and FD Rx-7's for a reason, they used 7's for leading and 9's for trailing factory boost level cars. We prefer all 9's for added safety. The air injection code is present because the factory E.C.U. thinks "it's really rich, somthing must be wrong with the air injection system". During the Intial testing this code was present but after tuning stopped reoccuring.

epitrochoid

people weren't getting CEL's for this problem with the emanage were they? i never heard of anyone with a correctly setup system getting one.

also, just how rich can we go before PCM will trip the CEL? maybe with a good tune we could get it right on the threshold, or maybe that'd be too lean.

ttt

so scott you are saying with proper tuning you will get NO CEL

ttt

because i was thinking of going over there next week to installed the X, boost controler, RP cat, and then go to the dyno. everything on the same day

rkostolni

I called SFR and PTP today to see if they have these codes with their engine management. SFR does not, PTP does at the moment, but does not plan to have them with the finished product.

RXhusker

I am not sure how any boosted solution will not get the CEL code(s). The AFR's will run out of the acceptable range for the ECU (too rich) and trigger the CEL(s) due the the fuel needed to prevent pre-ignition while under boost. I get the same codes occassionally with my emangage set-up and clear them out.

RXhusker

The funny thing is that people are "blaming" Mazsport (Scott) for the CEL's -- this is just a function of boosting the car not a deficiency in the Interceptor. You could lean out the map to not get these CEL's but you had better start a contingency fund for a new engine. What is causing the CEL's (too rich mix) is protecting your engine from exploding under higher boost.

TORacing

I have had the same CELs since I installed the Greddy Turbo kit last MAy and I have been riding around with the CEL light on, as long as you listen for detonation and check the codes when you notice a difference in the vehicle you will be fine.
"A light is just a light, if you know what the light means".

PUR NRG

I'm still throwing CELs in less than a mile (0.6 to be precise) after clearing them using the CanScan. Two new ones I've seen twice now is

P0001 Fuel volume regulator control circuit/open
P2096 Post catalyst fuel trim system too lean bank 1

Scott, any idea what either might mean in the context of an interceptor?

swoope

iTrader: (5)

not that it is my place to answer, but have you reset the kam?????

beers

PUR NRG

I believe KAM reset no longer applies. One of the flashes (M?) changed things.

rkostolni

Call Scott up and ask him about that too lean error code. That doesn't sound good.

TORacing

My interceptor and colder plugs get here tomorrow, but I won't be able to give any info becuase today after installing my new 6 puck clutch the tranny messed up. The syncro for Reverse was already acting up and I guess with all the torque from the 6 puck it finally gave out ALL THE WAY. After driving the car for about 30 min. 1st, 2nd, and 3rd gear started chattering and now it is almost impossible to get it in reverse. My mechanic is suppost to tear down the tranny and see what is wrong, but he can't do it till Monday. I tell you what though for the 30 min. it did work with the new clutch, I loved it!

PUR NRG

Okay, another day of driving and another set of CELs:

P0171 System too lean (bank 1)-- it's starting to look like this will be a permanent fixture of the interceptor.
P0410 Secondary air injection system malfunction
P0004 Fuel volume regulator control circuit high

brillo

We have banks? Huh? weird, well maybe its just implying a lean condition and the whole engine is bank 1.

sounds like emissions codes to me, which I would expect given that you are messing with the afr. Do you have the dealer service manual on pdf? can you look up what these codes mean and how to fi them? I'd like to know more about the last one.