Car starts at cold start only

257201 · 01-22-2016, 08:26 PM

My 93 rx7 13b starts at only at cold start but then dies like at 2 min jus sitting there and while its running theres a lot of smoke coming out the exhaust. Its a single turbo conversion with both 750cc primary and secondary injectors running on a 255 fuel pump. The previous owner had an Apexi Power FC and a Hks EVC-S boost controller but removed it from the car. And now im using my brothers Power Fc but I have no boost controller connected yet but the valve is still there but starts only at cold srarts and when i decide to turn it on again it wont start at all. What could be the issue with this? Does it need a proper computer tuning?

Fendamonky · 01-23-2016, 12:39 AM

Yes.

257201 · 01-23-2016, 02:34 AM

So by programming the Power FC ecu it will fix the issues that I'm having with my car? Do you know what will be the rate for the programming by any chance?

chibikougan · 01-23-2016, 01:29 PM

Quote:

Originally Posted by 257201

So by programming the Power FC ecu it will fix the issues that I'm having with my car? Do you know what will be the rate for the programming by any chance?

I would get a good reliable compression check before throwing money at a tune also. If you have not deleted the rats nest you very well could have many Vacuum leaks. There are many many reasons why the car won't stay running and I am sure the PFC is on of those many reasons.

Here this is your new best friend.

http://foxed.ca/index.php?page=rx7manual#thirdgen

chibikougan · 01-23-2016, 01:34 PM

You say a lot of smoke coming out of the exhaust is this white smoke or blue smoke? Are you running low on oil a lot? Is your coolant low a lot?

Does the smoke happen right at start up and continue until burn off or does it start when the engine is up to temp?

I would personally not use a PFC.

Using one that was on and Tuned for another car to operate yours was a mistake that might have blown your engine. Lets hope for the best get us some answers and we can better put our brains to it.

Fendamonky · 01-23-2016, 10:57 AM

Numbers - there is no guarantee that having your ECU mapped for your setup will fix all your problems (you could have issues unrelated to the ECU map) but it will certainly help. Does your btothers car have a similar setup to yours? (Same ports, turbo size, injectors, etc., etc., etc.)

RETed · 01-24-2016, 08:10 PM

Mr. ARD-FD3S:

This is your formal, first warning for posting bad advice.

Please re-read the forums rules, as giving bad advice does count for disciplinary action.

I am going to try and rid all the unnecessary crap in here.

Power FC the "best"? Oh please.
Run 28 psi on pump gas? Oh please.

-Ted

Fendamonky · 01-24-2016, 11:12 PM

Thanks for cleaning that crap up Ted.

ARD-FD3S · 01-25-2016, 07:31 AM

I said that the Apexi boost control kit comes with a map sensor that allows you to Run 28psi.
Never said u can run 28 on pump fuel
And Thanks for cleaning up the the bad language .

257201 · 01-26-2016, 01:22 AM

Other than a pfc, whats an ecu thats worth the buying for good performance then?

Fendamonky · 01-26-2016, 07:49 AM

It depends a lot on your budget.

Haltech PS1000 or PS2000 are capable and not going to be *too* expensive.

Adaptronic is a relatively new company that has become popular.

Syvecs makes VERY good stuff, but they're a bit more pricey. (I've personally got a Life Racing ECU, which is the motorsports sister-company to Syvecs).

The last few years have seen MAJOR advances in ECU capability and accessibility. AEM and Haltech both had an "arms race" so to speak which produced the AEM Infinity and Haltech Elite, both being BADASS computers.

Where are you physically located? At the end of the day ANY ecu is only as capable as the person tuning it (except for Microtech. Friends don't let friends put a microtech in their street FD. Ever!!) so you'll want to speak with whoever is tuning it.

***TitaniumTT*** · 01-26-2016, 09:41 AM

Reading some of the deleted posts and even some of the non deleted posts is comical. There is sooooooooo much bad information it's ridiculous.
A) the PFC stands for pretty fucked car or pretty fucked computer or pile of fucking crap
B) the adaptronic isn't much better. It's quicker and can actually datalog although not very well at all. and the interface sucks big horse cock. Oh, and it's still relying on 25 year old wiring. So consider buying a new stock engine harness for like $1200
C) anything halltech E(anything) should be filled with tanerite and put in a field for target practice. End of story
D) helltech PS1&2000 is like the lowest of the low entry level ECU's based on the way their mapping is done. It kinda really sucks, like a lot, to tune transitions. They do have some features that I like, engine protection and closed loop fuel and boost control
E) NEVER UNDER ANY CIRCUMSTANCES TAKE THE ADVICE OF SOMEONE WHEN TALKING ABOUT ECU'S WHO DOESN'T ACTUALLY KNOW HOW TO SET THEM UP, WIRE THEM IN, OR TUNE A CAR. It's like asking Hellen Keller to teach you to read. Just because you can read a spec sheet doesn't make you an expert. I can read a recipe, but you don't want me cooking for you, unless it's from the grill, or an omelette.

***TitaniumTT*** · 01-26-2016, 11:45 AM

Quote:

Originally Posted by Pete_89T2

Caveat on the PnP is that it's only a good point if you know you have a good or new wiring harness to start with. If the harness is crispy, beat up or has been otherwise effed with by a dumb previous owner, PnP becomes a liability.

You're absolutely right. I've had problems with my RX8 that is basically stock, only bolt-on's, still running the stock ECU.... not even a Cobb hook-up... and I've had the Cobb in the glovebox for almost 4 years now... shoe makers shoes and all that... squirrel! ... with problems with crispy wiring, and that car is only 12 years old. Problems with the connection between the trigger sensor and the connector, shielding issues, it fucking sucks... and those harnesses are only about $800. And I still won't buy one, but I can fix it... correctly... and for a fraction of the price. Had my 8 been a turbo car, that wiring would've already cost me an engine.

BTW - off the top of my head I can think of 4 engines that popped because of a PFC, and HC has probably killed 2x that on his PFC

But yeah, I did mention that....

Quote:

Originally Posted by TitaniumTT

B) the adaptronic isn't much better. It's quicker and can actually datalog although not very well at all. and the interface sucks big horse cock. Oh, and it's still relying on 25 year old wiring. So consider buying a new stock engine harness for like $1200

chibikougan · 01-26-2016, 04:36 PM

Add 2 wait maybe 3 on to that...

chibikougan · 01-26-2016, 08:02 PM

If you are serious about replacing your ECU get in touch with C.Ludwig on this forum.

01-22-2016, 08:26 PM	#1
257201 The Newbie Join Date: Jan 2016 iTrader: (0) Posts: 4 Rep Power: 0	Car starts at cold start only My 93 rx7 13b starts at only at cold start but then dies like at 2 min jus sitting there and while its running theres a lot of smoke coming out the exhaust. Its a single turbo conversion with both 750cc primary and secondary injectors running on a 255 fuel pump. The previous owner had an Apexi Power FC and a Hks EVC-S boost controller but removed it from the car. And now im using my brothers Power Fc but I have no boost controller connected yet but the valve is still there but starts only at cold srarts and when i decide to turn it on again it wont start at all. What could be the issue with this? Does it need a proper computer tuning?

01-26-2016, 09:41 AM	#12
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	Reading some of the deleted posts and even some of the non deleted posts is comical. There is sooooooooo much bad information it's ridiculous. A) the PFC stands for pretty fucked car or pretty fucked computer or pile of fucking crap B) the adaptronic isn't much better. It's quicker and can actually datalog although not very well at all. and the interface sucks big horse cock. Oh, and it's still relying on 25 year old wiring. So consider buying a new stock engine harness for like $1200 C) anything halltech E(anything) should be filled with tanerite and put in a field for target practice. End of story D) helltech PS1&2000 is like the lowest of the low entry level ECU's based on the way their mapping is done. It kinda really sucks, like a lot, to tune transitions. They do have some features that I like, engine protection and closed loop fuel and boost control E) NEVER UNDER ANY CIRCUMSTANCES TAKE THE ADVICE OF SOMEONE WHEN TALKING ABOUT ECU'S WHO DOESN'T ACTUALLY KNOW HOW TO SET THEM UP, WIRE THEM IN, OR TUNE A CAR. It's like asking Hellen Keller to teach you to read. Just because you can read a spec sheet doesn't make you an expert. I can read a recipe, but you don't want me cooking for you, unless it's from the grill, or an omelette. __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

01-23-2016, 02:34 AM	#3
257201 The Newbie Join Date: Jan 2016 iTrader: (0) Posts: 4 Rep Power: 0	So by programming the Power FC ecu it will fix the issues that I'm having with my car? Do you know what will be the rate for the programming by any chance?

01-25-2016, 07:31 AM	#9
ARD-FD3S The Newbie Join Date: Jan 2015 iTrader: (0) Posts: 9 Rep Power: 0	I said that the Apexi boost control kit comes with a map sensor that allows you to Run 28psi. Never said u can run 28 on pump fuel And Thanks for cleaning up the the bad language .

01-26-2016, 01:22 AM	#10
257201 The Newbie Join Date: Jan 2016 iTrader: (0) Posts: 4 Rep Power: 0	Other than a pfc, whats an ecu thats worth the buying for good performance then?