Help Weird Idel problem after swap.
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Help Weird Idel problem after swap.
I finally got my swap running today. Right now there are 2 problems.
First it has code 41. It means its 02 related. Not too worried about this, but it could possiblly be an underlying fact to the next problem. It does have me puzzled because it throws the code like instantly after the car starts up. The o2 is hooked up and I did double check the connector and it was on there properly
The next problem. When I reset the ECU and turn the car on, starts great, sound great. I set the timing, runs perfectly. However, when I go to move, the second it starts moving, the car starts to sputter like hell almost stalls out, timing jumps all around. I turn the car off and turn it back on, still sputters until I reset the ECU. It still only throws the one 41 code.
Any Ideas? Maybe a vacuume issue?
*Edit. Opps forgot to mention what this is on. This is a 92 Prelude Si, with a JDM H22a obd1 engine, using a p13 ecu and a p14 engine harness.
First it has code 41. It means its 02 related. Not too worried about this, but it could possiblly be an underlying fact to the next problem. It does have me puzzled because it throws the code like instantly after the car starts up. The o2 is hooked up and I did double check the connector and it was on there properly
The next problem. When I reset the ECU and turn the car on, starts great, sound great. I set the timing, runs perfectly. However, when I go to move, the second it starts moving, the car starts to sputter like hell almost stalls out, timing jumps all around. I turn the car off and turn it back on, still sputters until I reset the ECU. It still only throws the one 41 code.
Any Ideas? Maybe a vacuume issue?
*Edit. Opps forgot to mention what this is on. This is a 92 Prelude Si, with a JDM H22a obd1 engine, using a p13 ecu and a p14 engine harness.
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From: KS
Re: Help Weird Idel problem after swap. (asmallsol)
What ECU is it?
My car did the same thing and even threw a bogus code, because I hooked up the ECU that came with the engine/tranny, which was a P0F from an Accord SiR. I hooked up a jdm P13 and it now runs perfect and idles perfect.
My car did the same thing and even threw a bogus code, because I hooked up the ECU that came with the engine/tranny, which was a P0F from an Accord SiR. I hooked up a jdm P13 and it now runs perfect and idles perfect.
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Re: Help Weird Idel problem after swap. (fast_honda)
I am using an OBD1 USDM P13 so its basicly the right ECU
On another forum I go to, someone recomend replacing my downpipe/header gasket. Said that it was throwing the 02 in a loop and could be causing the problems (maybe getting fresh air into the header through a leak.
On another forum I go to, someone recomend replacing my downpipe/header gasket. Said that it was throwing the 02 in a loop and could be causing the problems (maybe getting fresh air into the header through a leak.
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From: KS
Re: Help Weird Idel problem after swap. (asmallsol)
maybe it's the O2 sensor. I assume the jdm and usdm P13's are mapped similarly enough that it shouldn't effect idle, but don't take my word for it because I've never tried a usdm ecu on my motor.
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Re: Help Weird Idel problem after swap. (fast_honda)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fast_honda »</TD></TR><TR><TD CLASS="quote">maybe it's the O2 sensor. I assume the jdm and usdm P13's are mapped similarly enough that it shouldn't effect idle, but don't take my word for it because I've never tried a usdm ecu on my motor. </TD></TR></TABLE>
Maybe. The old engine did throw a rod, and the driver managed to drive the car for another 10 or so miles to get it home like that. Could have got a **** load of oil and stuff all over the o2
Maybe. The old engine did throw a rod, and the driver managed to drive the car for another 10 or so miles to get it home like that. Could have got a **** load of oil and stuff all over the o2
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