Please tell me this isn't a seal blowing out...
#1
Please tell me this isn't a seal blowing out...
I was on the way home and having my fun merging onto freeway traffic when I heard a loud “crunch.” Initially I thought it was one of two semis shifting gears while I was passing but the immediate loss of power couldn’t be coincidental. Please tell me that this isn’t what an apex or side seal blowing out sounds like I had the boost at about 12-13 psi but turned down my boost controller to 8-9 psi afterwards. I managed to limp the car home but had to keep the car idling at 1500 rpm on the city streets to prevent it from stalling out. As of 9pm PST, the car still exhibits:
Symptoms:
1. Erratic and lumpy idle with black puffs of smoke spewing from the exhaust; I’m assuming this is unburned fuel because…..
2. A strong fuel-smell (duh) – The car is running really rich.
3. Lack of power, feels like someone shut off one of my rotors (valet/safety mode – as in my old FC)
4. Feels like the ignition is not firing correctly.
This is the second time this has happened to me. I “fixed” the first occurrence 6-8 months ago by shutting the car down and allowing her to cool off. I started her back up 3-4 hours afterwards and the car didn’t miss a beat. Unfortunately I never got around to taking the car to my mechanic to have her checked out. I’m hoping that some of you in the forum may have some input and suggestions for me while I try to figure this out tomorrow morning. I’m going to try resetting the computer and have read up on how to do such, however a friendly reminder would be extremely helpful
Thanks in advance.
93 R1
35,000 original miles
My mods are:
HKS intake
HKS downpipe
Random Technologies High-Flow Cat
HKS Cat Back
HKS F-CON
HKS EVC-EZ
Mazdaspeed Short-Shift
?
?
?
Symptoms:
1. Erratic and lumpy idle with black puffs of smoke spewing from the exhaust; I’m assuming this is unburned fuel because…..
2. A strong fuel-smell (duh) – The car is running really rich.
3. Lack of power, feels like someone shut off one of my rotors (valet/safety mode – as in my old FC)
4. Feels like the ignition is not firing correctly.
This is the second time this has happened to me. I “fixed” the first occurrence 6-8 months ago by shutting the car down and allowing her to cool off. I started her back up 3-4 hours afterwards and the car didn’t miss a beat. Unfortunately I never got around to taking the car to my mechanic to have her checked out. I’m hoping that some of you in the forum may have some input and suggestions for me while I try to figure this out tomorrow morning. I’m going to try resetting the computer and have read up on how to do such, however a friendly reminder would be extremely helpful
Thanks in advance.
93 R1
35,000 original miles
My mods are:
HKS intake
HKS downpipe
Random Technologies High-Flow Cat
HKS Cat Back
HKS F-CON
HKS EVC-EZ
Mazdaspeed Short-Shift
?
?
?
#2
Living life 9 seconds at a time
iTrader: (2)
Join Date: Feb 2001
Location: Abingdon, Md
Posts: 6,541
Likes: 0
Received 0 Likes
on
0 Posts
Before assuming the worst, although it could be. Try checking your igniton system like coils, plugs, wires, grounds, etc....you may have just fouled a plug or a wire could have came loose. Stranger things have happened. Good luck.
#5
I do have a F-CON to compensate for the increased feul requirements at higher boost levels however since it doesn't adjust timing, I will admit it is a bit limiting. I was reading the AEM threads to search out the specs on it before all of this took place but hopefully it's a $2 spark plug or wire, not a new motor; although I am interested in a street port
#6
Full Member
Join Date: Feb 2001
Location: Pockyville
Posts: 137
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by Svelte_7
I do have a F-CON to compensate for the increased feul requirements at higher boost levels however since it doesn't adjust timing, I will admit it is a bit limiting. I was reading the AEM threads to search out the specs on it before all of this took place but hopefully it's a $2 spark plug or wire, not a new motor; although I am interested in a street port
I do have a F-CON to compensate for the increased feul requirements at higher boost levels however since it doesn't adjust timing, I will admit it is a bit limiting. I was reading the AEM threads to search out the specs on it before all of this took place but hopefully it's a $2 spark plug or wire, not a new motor; although I am interested in a street port
I hope it's something little. Change the plugs... they killed my car once (temporarily).
Trending Topics
#13
Well, I ran the diagnostics and its codes 71 and 73, the secondary front and rear injectors.
I guess this explains why the car won't start anymore. The engine turns but doesn't "catch." Could it be flooded? I didn't let the car warm up thoroughly before shutting her down to get the initial vacuum readings. Anyways, I need to start digging through the Service Manual to figure out how to proceed. Any suggestions?
I guess this explains why the car won't start anymore. The engine turns but doesn't "catch." Could it be flooded? I didn't let the car warm up thoroughly before shutting her down to get the initial vacuum readings. Anyways, I need to start digging through the Service Manual to figure out how to proceed. Any suggestions?
#14
Just found this on page F-235 in the Shop Manual:
• If a secondary injector or circuit has an open or short, Service Code 71 (Front) or 73 (Rear) is output, causing poor acceleration and lack of engine power.
• If a primary injector or circuit has an open, engine will stall and will not start.
Pheww, I’m sorta relieved but don’t want to tempt any more of Murphys' Laws.
Now where did I put my multimeter?
• If a secondary injector or circuit has an open or short, Service Code 71 (Front) or 73 (Rear) is output, causing poor acceleration and lack of engine power.
• If a primary injector or circuit has an open, engine will stall and will not start.
Pheww, I’m sorta relieved but don’t want to tempt any more of Murphys' Laws.
Now where did I put my multimeter?
#15
Senior Member
Join Date: Aug 2002
Location: Navarre, FL
Posts: 338
Likes: 0
Received 0 Likes
on
0 Posts
I'll be happy to be wrong
I'm curious, do you have a check engine light, or did you just find the codes in memory on the ECU? Are you sure they're current codes? I very much hope it's something simple.
Good luck,
I'm curious, do you have a check engine light, or did you just find the codes in memory on the ECU? Are you sure they're current codes? I very much hope it's something simple.
Good luck,
#16
Good point!
I don't know if the codes *are* current.
I did have trouble pulling the codes though.
I didn't get any codes at first so I disconnected the battery for a minute and stepped on the brake. I then disconnected the F-CON and reconnected the battery. Since the time on the radio was still set to the correct time, I assumed that the reset didn't take hold however the codes did appear this time. To double check, I hooked the F-CON back up and the same codes still came up - I must have jumpered the Diagnostics wrong the first time.
In any case, I need to start removing "stuff" off the car.
Thanks for your thought.
I don't know if the codes *are* current.
I did have trouble pulling the codes though.
I didn't get any codes at first so I disconnected the battery for a minute and stepped on the brake. I then disconnected the F-CON and reconnected the battery. Since the time on the radio was still set to the correct time, I assumed that the reset didn't take hold however the codes did appear this time. To double check, I hooked the F-CON back up and the same codes still came up - I must have jumpered the Diagnostics wrong the first time.
In any case, I need to start removing "stuff" off the car.
Thanks for your thought.
#19
Check the Boost Sensor on the firewall, the sensor hose is unplugged however since the F-CON has its own boost sensor, this *should* be normal - I have to look up the HKS manual on this.
I primed the fuel system however the car managed to only cough/burp a few times and not catch.
The front strut brace and the throttle elbow are off. Next is the manifold extension.
I primed the fuel system however the car managed to only cough/burp a few times and not catch.
The front strut brace and the throttle elbow are off. Next is the manifold extension.
#20
Hey all,
I was about to take the UIM off when I noticed that one of the cables to my throttle body is missing/snapped! I think this explains some if the irregularities however I was wondering if you guys know the origin of the cable. I can't find it in the shop manual so I'm including a photo.
Crap, looks like I'm having trouble posting pics...
Here's a link to another thread then...
https://www.rx7club.com/forum/showth...hreadid=121693
I was about to take the UIM off when I noticed that one of the cables to my throttle body is missing/snapped! I think this explains some if the irregularities however I was wondering if you guys know the origin of the cable. I can't find it in the shop manual so I'm including a photo.
Crap, looks like I'm having trouble posting pics...
Here's a link to another thread then...
https://www.rx7club.com/forum/showth...hreadid=121693
Last edited by Svelte_7; 10-08-02 at 02:25 AM.
#21
id' double check your injectors. from what i've read, i think you had injector problems before, and that caused you to possibly run into a lean condition, in which case the motor kinda let go. Then you pulled the codes which were in memory and then found the error codes from the injectors. It could be something else i'm really really hoping. But pulling those low idle numbers are bad, even on start up. My car actually gets higher vacuum on start up and then settles to a normal one.
danny
danny
#22
Final Update:
Well the car runs fine now. Changed the plugs, reset the ECU and *ahem* plugged in the hose to the boost sensor...
"Check the boost sensor on the firewall, drivers side. Sometimes the hose falls off or leaks...I highly doubt you have an engine problem with 35,000.."
Thanks Mr. RX7 TT
Well the car runs fine now. Changed the plugs, reset the ECU and *ahem* plugged in the hose to the boost sensor...
"Check the boost sensor on the firewall, drivers side. Sometimes the hose falls off or leaks...I highly doubt you have an engine problem with 35,000.."
Thanks Mr. RX7 TT
Last edited by Svelte_7; 10-10-02 at 01:03 PM.
#23
Rotary Enthusiast
Join Date: Feb 2002
Location: Florida
Posts: 750
Likes: 0
Received 0 Likes
on
0 Posts
was ur problem the same as this cuz i think im having the same thing https://www.rx7club.com/forum/showth...hreadid=122226