2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

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Old Jan 4, 2007 | 06:28 PM
  #1  
lupin's Avatar
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Rupanrx
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From: MASSHOLE
Angry starting to get angry

Alright guys

all imy engine does is turn over and when I hold the gas(zeal floodclear) It makes a louder noise.

I have a s4 gxl with s5 intakes.
Removed and blocked off emissions

Running zeal megasquirt
(I checked the outputs with a oscilloscope
and everything seems to be fine)

I have rewired the engine and I used all new connectors and I have
fuel, I have spark.
I bought a new pulley because I was missing a timing mark on my stock.

I Have a s5 alternator(the old one was broken and could have caused noise)

I didn't list my mods because the list is at home and it's to long to remember.

I just rebuilt my engine and I have good compression.

I'm not expecting you guys to tell me whats wrong but if you guys could just throw some ideas at me that would be great.
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Old Jan 4, 2007 | 06:40 PM
  #2  
rx7 FC TII's Avatar
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From: Alabama
check your fuses.......are you sure youre getting spark and fuel?
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Old Jan 4, 2007 | 09:21 PM
  #3  
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Rupanrx
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From: MASSHOLE
100% positive
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Old Jan 4, 2007 | 09:24 PM
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From: Marysville, CA
is fuel being injected? try afm.
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Old Jan 4, 2007 | 10:07 PM
  #5  
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^ He has a megasquirt, in all likelyhood he doesn't have an AFM.

Has the car worked since you installed the megasquirt? If not this sounds like a good issue for the megasquirt forum.

What do you have for a map? You were sure to check the megasquirt outputs to ensure that your injectors were pulsing, your fuel pump has voltage, your plugs are firing. You might also want to ensure that the megasquirt is receiving the proper CAS, TPS, intake pressure, etc. signals (check at the ECU if possible).

You've tried cranking the engine in a way that you can verify does not send fuel into the engine? (to clear possible flooding)
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Old Jan 5, 2007 | 02:38 PM
  #6  
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Rupanrx
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From: MASSHOLE
I'm using a zeal map.
I didn't check the injector outputs
My pump does have voltage, I can hear it and I had a little leak in one of the rails but that is fixed now
I used a oscilloscope to make sure that the cas is sending signal to the ecu. I also checked the ecu outputs for spark. I even took the plugs out to see if they were firing.

I didn't check the tps

and when you hold the gas down it cuts fuel(ms thing). For some reason this is a louder turning over sound then reg cranking.
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