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

motor cutts out @3800rpm please help!!

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Old May 29, 2008 | 09:23 PM
  #1  
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From: 413 mass.
motor cutts out @3800rpm please help!!

has okay power til 3800 than seems like it starts dragging on something it had been sitting for a few years or so, i think before me. i changed plugs and wires, fuel filter, and air filter. was thinking cat next if i am correct what would be the best to do? this car also is not a vehicle that needs to pass any state inspection at all so. . .
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Old May 29, 2008 | 09:35 PM
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Jpk3200
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Not an uncommon problem. Repair your grounds.

Search for "3800 RPM Hesitation".
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Old May 29, 2008 | 09:39 PM
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Your cats could be clogged aside from the "3,800 rpm hesidtation". You can find an answer to that in the FAQ.

To answer the cat question you'll have to go to a muffler shop and ask them to check them out for you. Mine did the same thing and i got the cats replaced ($200 ugh won't replace precats ever again. test pipe to main cat next time) and it ran just fine afterwords.
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Old Jun 2, 2008 | 01:35 PM
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From: 413 mass.
Originally Posted by satanicmechanic
Your cats could be clogged aside from the "3,800 rpm hesidtation". You can find an answer to that in the FAQ.

To answer the cat question you'll have to go to a muffler shop and ask them to check them out for you. Mine did the same thing and i got the cats replaced ($200 ugh won't replace precats ever again. test pipe to main cat next time) and it ran just fine afterwords.
so i put a system in my car and just pretty much drove it more and it seems to go away sometimes cold or hot doesn't matter and am not sure where all the grounds are and my thread counts not enough to veiw any pics or anything lol so i was wondering if any agreed that made sense and/or could help in some way i have read many threads and haven't really found enough info on how to fix anyone?like locations of such grounds etc. . . .
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Old Jun 2, 2008 | 02:30 PM
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The problem is with your secondary fuel injectors which kick on at 3800rpm. Either they are dirty, not getting power, leaking beyond control, or all the above.

Take em out, get em cleaned. www.injector.com
Make sure youve got good wiring.
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Old Jun 2, 2008 | 05:55 PM
  #6  
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From: 413 mass.
could i replace them with 1000cc injectors without other mods for motor or will it be too much? if too much what is highest i could run without moding other things
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Old Jun 2, 2008 | 06:38 PM
  #7  
ilike2eatricers's Avatar
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From: bay area
if you are NA stick with stock sized injectors anything bigger is not necessary and your car will run like ****
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Old Jun 2, 2008 | 06:53 PM
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From: 413 mass.
that sux cuz i do wish too put turbo on but not for a while and hate to buy things twice but really want car to run good for a while and i got too many other things to work on i bought this as a project i actually towed it home 2 weeks ago kid said it would drive for about a mile and start to bog out and stall i took it here put plugs in and been driving it since lol
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Old Jun 2, 2008 | 09:19 PM
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From: 413 mass.
anyone know anything about the hks fuel injector pipe kit? is it good worthe the money? junk?. . .
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Old Jun 2, 2008 | 09:32 PM
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if youre talking about the AIC (additional injector controller it's not going to solve your problem
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Old Jun 2, 2008 | 09:34 PM
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Originally Posted by ilike2eatricers
if youre talking about the AIC (additional injector controller it's not going to solve your problem
Let him. Look at his sig.
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Old Jun 3, 2008 | 06:00 AM
  #12  
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From: 413 mass.
no it is a piping kit with injectors was not really sure where the kit would install

http://www.horsepowerfreaks.com/pric..._Kits/part/AIC

there is link to what i am speaking off
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Old Jun 3, 2008 | 12:07 PM
  #13  
ilike2eatricers's Avatar
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Originally Posted by Supa_Smoke
no it is a piping kit with injectors was not really sure where the kit would install

http://www.horsepowerfreaks.com/pric..._Kits/part/AIC

there is link to what i am speaking off
Originally Posted by ilike2eatricers
if youre talking about the AIC (additional injector controller it's not going to solve your problem
i thought i already said that
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Old Jun 3, 2008 | 01:34 PM
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Fix your grounds. The problem is not the size of your injectors, but if/when they fire up.

Either your resistor pack is fubar (if you have one), your grounds are bad (the one under the intake most likely) or your secondary injectors are jammed/broke. Take them out and have them cleaned and flow tested. Otherwise, just buy some usedones off the for sale section here. I even think I have some.

Spec.
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Old Jun 3, 2008 | 05:10 PM
  #15  
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From: 413 mass.
thank you and i think you took what i said a little wrong i was looking to also fix and advance i wish to do alot to this car in future just need to figure out correct path to follow without having to purchase things twice and most importantly save up the money lol
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