Intercooled 86 flatty with blowoff valve and automatic, has a stumble around 4k and cant get over. Its fine in park or neutral and can rev up, just not in gear. Throttle body, is rebuilt, new coil, new distributor, new plugs, new wires, new fuel filter. Only thing is the injectors have not been cleaned, but everything ignition related has been replaced.
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4k RPM Stumble/Misfire
Started by
Side-Swipe
, Nov 02 2011 02:01 PM
8 replies to this topic
#1
Side-Swipe
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Posted 02 November 2011 - 02:01 PM
1986 R64 Seychelle Red Sunroof, Automatic, Technica Flatty: Widebody Intercooler and Turbo, 2.5in Cat-less Downpipe, 2.5in HKS SS Starion Exhaust and Muffler, External Wastegate, 1g Blow-off Valve, K&N Filter, Emissions and EGR delete, ABS delete.
#2
Minagera
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The Petulant Child
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Posted 02 November 2011 - 02:03 PM
How is your TPS? Also I am thinking injectors like you.
87 Starion, Palermo with Black Interior 5-speed. (Fix everything Fanta Broke)
88 Conquest, White with Maroon Interior 5-speed. (Bought with Seize Engine and hasn't been touched since)
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88 Conquest, White with Maroon Interior 5-speed. (Bought with Seize Engine and hasn't been touched since)
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#3
Side-Swipe
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Posted 02 November 2011 - 02:10 PM
Minagera, on 02 November 2011 - 02:03 PM, said:
How is your TPS? Also I am thinking injectors like you.
TPS has been reset. What would happen if you ran the wrong injectors like out of a 86 widebody or something? I have a spare set of J injectors that im gonna send out to get cleaned.
1986 R64 Seychelle Red Sunroof, Automatic, Technica Flatty: Widebody Intercooler and Turbo, 2.5in Cat-less Downpipe, 2.5in HKS SS Starion Exhaust and Muffler, External Wastegate, 1g Blow-off Valve, K&N Filter, Emissions and EGR delete, ABS delete.
#4
Indiana
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Posted 02 November 2011 - 07:35 PM
Side-Swipe, on 02 November 2011 - 02:10 PM, said:
What would happen if you ran the wrong injectors like out of a 86 widebody or something?
#5
Side-Swipe
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Posted 02 November 2011 - 07:40 PM
Indiana, on 02 November 2011 - 07:35 PM, said:
H and J injectors are the same, actually the same from 83 to 86 no matter what model just the 83s are hard wired and only work in the 83 throttlebody but the nozzles for all those are the same.
So a flatty takes two J or to H injectors?
1986 R64 Seychelle Red Sunroof, Automatic, Technica Flatty: Widebody Intercooler and Turbo, 2.5in Cat-less Downpipe, 2.5in HKS SS Starion Exhaust and Muffler, External Wastegate, 1g Blow-off Valve, K&N Filter, Emissions and EGR delete, ABS delete.
#6
Indiana
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Posted 04 November 2011 - 08:39 AM
or one of each it doesn't matter they are the same
What spark plug you using and what boost level are you at when that happens?
What spark plug you using and what boost level are you at when that happens?
#7
Side-Swipe
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Posted 04 November 2011 - 01:56 PM
Indiana, on 04 November 2011 - 08:39 AM, said:
or one of each it doesn't matter they are the same
What spark plug you using and what boost level are you at when that happens?
What spark plug you using and what boost level are you at when that happens?
I was told they are the Bur ones the correct ones. And at full boost.
1986 R64 Seychelle Red Sunroof, Automatic, Technica Flatty: Widebody Intercooler and Turbo, 2.5in Cat-less Downpipe, 2.5in HKS SS Starion Exhaust and Muffler, External Wastegate, 1g Blow-off Valve, K&N Filter, Emissions and EGR delete, ABS delete.
#8
Side-Swipe
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Posted 21 November 2011 - 01:45 AM
Side-Swipe, on 04 November 2011 - 01:56 PM, said:
I was told they are the Bur ones the correct ones. And at full boost.
It is like 8.6 psi. Could a crack in the exhaust manifold cause it? I also have puffs of white smoke on start up.
1986 R64 Seychelle Red Sunroof, Automatic, Technica Flatty: Widebody Intercooler and Turbo, 2.5in Cat-less Downpipe, 2.5in HKS SS Starion Exhaust and Muffler, External Wastegate, 1g Blow-off Valve, K&N Filter, Emissions and EGR delete, ABS delete.
#9
Side-Swipe
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Posted 23 January 2012 - 04:27 PM
So when I unplugged the map sensor the misfire went away
1986 R64 Seychelle Red Sunroof, Automatic, Technica Flatty: Widebody Intercooler and Turbo, 2.5in Cat-less Downpipe, 2.5in HKS SS Starion Exhaust and Muffler, External Wastegate, 1g Blow-off Valve, K&N Filter, Emissions and EGR delete, ABS delete.
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