1994 RAM 1500 5.9L backfire through intake
#11
04-06-2022, 04:45 PM
Well, when We installed TB for the first time, before the engine was refreshed. Was impossible use it because at start it was full throttled with the original tps position. We found in forums a post talking about this situation and the solution was cross the end wires of the tps connector. With this mod everything works good. I never checked voltage. But now, with this situation and your question, I verified and I have 1.62 v at idle and with engine off key on the same value this must be an issue if the original reading should be approximately .060 and maximum a little less than 1 volt, right? I had a Spare sensor, I nstalled and I read the same value. I released the sensor and I can read less volts.
#12
04-07-2022, 12:59 AM
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#13
04-07-2022, 01:11 AM
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The swapped wires are ground and 5 volt feed
If I returned the swapped wires, the engine revs full throttle when I start the engine.
#15
04-07-2022, 02:00 AM
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mopar aluminum cylinder heads 53cc 1.97/1.625
mopar RR 1.6r
ford 24 lbs @ 39psi fuel injectors
crane cam ignition box hi-6 & ignition coil fireball
mopar HP double roller timing chain kit with tensioner
Stock shortblock 360
Everything was working good before the engine was refreshed.
pistons at 0.030 , main and rod bearings 0.010
Cometic head gasket Compressed Thickness: .120
#16
04-07-2022, 09:24 AM
#17
04-07-2022, 02:40 PM
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well, I proved it with multimeter and voltage changes according to the throttle, but the issue is the range , idle 1.60v to 4.20 v approximately at full throttle
I noticed too a glow red headers at idle. 😑
If IAC open to sucks air at idle they turn glow red faster. 👀
I noticed too a glow red headers at idle. 😑
If IAC open to sucks air at idle they turn glow red faster. 👀
#18
04-07-2022, 04:46 PM
That actually worked???? Interesting....
Voltage might be a little high, but, one of the things the computer does after a reset is re-learn the zero values for the various sensors. So, it *should* be able to figger that out. Do you have a scanner? If so, what is it reading for TPS percent? The glowing headers do indicate its running a bit rich.
Or, the timing in your tune is retarded to much. (the fuel/air are still burning when the exhaust valve opens....)
Voltage might be a little high, but, one of the things the computer does after a reset is re-learn the zero values for the various sensors. So, it *should* be able to figger that out. Do you have a scanner? If so, what is it reading for TPS percent? The glowing headers do indicate its running a bit rich.
Or, the timing in your tune is retarded to much. (the fuel/air are still burning when the exhaust valve opens....)
#19
04-07-2022, 10:53 PM
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Yeap , in fact before the engine rebuild it was working very well. But I never checked the voltage
I have and old actron scanner, with obd1 plug but it doesn't show TPS percent, just voltage
I have a new type scanner, but it just have obd2 socket. And I don't have an adapter
I have a new type scanner, but it just have obd2 socket. And I don't have an adapter
#20
04-07-2022, 11:16 PM
Champion
Yeap , in fact before the engine rebuild it was working very well. But I never checked the voltage
I have and old actron scanner, with obd1 plug but it doesn't show TPS percent, just voltage
I have a new type scanner, but it just have obd2 socket. And I don't have an adapter
I have and old actron scanner, with obd1 plug but it doesn't show TPS percent, just voltage
I have a new type scanner, but it just have obd2 socket. And I don't have an adapter