92 LS (Poor Mans Type-R)

ASSISTANCE Hybrids & Advanced Aftermarket Engine Performance
1

I have a 92 DA with the following mods:
Block:

B18c1 bottom end
GSR crank and rods
CTR .25 over pistons (PCT)
ARP head studs
ITR water pump
B16A oil pump
NEW tensioner
DC sports 4-1 header

Head:

B16A head, ported and polished, 5 angle valve job
ITR cams
ITR valve springs and retainers
ITR injectors
B16 intake

Trans:

XSi tranny
ACT stage 2 pressure plate
Exedy stage 1 clutch disc
stock flywheel
NEW clutch cable

Interior:

Armrest
ITR shift boot

Rims & Tires:

rollin on a set of REAL Mugen MR-5s
black face with polished lip

Tune:

By Secret Services, Humble Tx
Runnin’ on a chipped Mugen P28

However I don’t think the vtec is engaging so it looks like I have a few issues to work out still.

2

Any ideas you guys may have or something I should try to resolve my vtec issue would be greatly appriciated. :rockon:

3

I also noticed the vacuum canister was removed and some vacuum lines where open, I routed everything to where it should go minus the canister… is there any specific reason the vacuum canister would be needed?

4

Typical reasons vtec is not activating;

  1. non vtec ECU or damaged ECU
  2. selonoid not wired to ECU (or not wired correctly)
  3. Selonoid and or engine not properly grounded.
  4. VSS not connected
  5. check engine liight on (ECU in limp mode)
  6. engine not warmed up.
  7. Car has to be at speed before ECU will activate vtec (see #4)
5

did it ever work before?

it’s either electrical or mechanical.

electrical = vtec solenoid, ecu, etc etc
mechanical = dowel pin in the rocker arms, or gasket/dowel in the center of the head, etc etc

troubl shoot your solenoiod first. make sure it works, then make sure it’s activating when it should. If the ECU triggers the solenoid, then take your cams off to get to the rockers

6

[QUOTE=2ndJenn;2096131]Typical reasons vtec is not activating;

  1. non vtec ECU or damaged ECU
  2. selonoid not wired to ECU (or not wired correctly)
  3. Selonoid and or engine not properly grounded.
  4. VSS not connected
  5. check engine liight on (ECU in limp mode)
  6. engine not warmed up.
  7. Car has to be at speed before ECU will activate vtec (see #4)[/QUOTE]

Thanks, you have given me a starting point… may be a stupid question, but what is VSS?

7

[QUOTE=viprtwo;2096132]did it ever work before?

it’s either electrical or mechanical.

electrical = vtec solenoid, ecu, etc etc
mechanical = dowel pin in the rocker arms, or gasket/dowel in the center of the head, etc etc

troubl shoot your solenoiod first. make sure it works, then make sure it’s activating when it should. If the ECU triggers the solenoid, then take your cams off to get to the rockers[/QUOTE]

It hasn’t worked, I just recently purchased the car and going through and fixing all the little things… basically taking over someone elses unfinished product.

8

vss=vehicle speed sensor

9

Thanks

10

Just pulled the cluster and prev. owner had removed the check engine light bulb, just replaced them all and going to throw it back in and see what codes I get… anyone know of a code list for a p28?

11

Codes I have are 10, 17, and 22.

12

P28 Codes

-----CEL # List-----
1 O2A - Oxygen sensor #1
2 O2B - Oxygen sensor #2
3 MAP - manifold absolute pressure sensor
4 CKP - crank position sensor
5 MAP - manifold absolute pressure sensor
6 ECT - water temperature sensor
7 TPS - throttle position sensor
8 TDC - top dead centre sensor
9 CYP - cylinder sensor
10 IAT - intake air temperature sensor
12 EGR - exhaust gas recirculation lift valve
13 BARO - atmospheric pressure sensor
14 IAC (EACV) - idle air control valve
15 Ignition output signal
16 Fuel injectors
17 VSS - speed sensor
19 Automatic transmission lockup control valve
20 Electrical load detector
21 VTEC spool solenoid valve
22 VTEC pressure valve
23 Knock sensor
30 Automatic transmission A signal
31 Automatic transmission B signal
36 traction control found on JDM ecu’s
41 Primary oxygen sensor heater
43 Fuel supply system
45 Fuel system too rich or lean
48 LAF - lean air fuel sensor
54 CKF - crank fluctuation sensor
58 TDC sensor #2
61 Primary oxygen sensor
63 Secondary oxygen sensor circuit
65 Secondary oxygen sensor heater wire (black wires)
67 Cat Converter
71 random misfire cylinder 1
72 random misfire cylinder 2
73 random misfire cylinder 3
74 random misfire cylinder 4
80 EGR Valve/Line
86 ECT sensor - Cooling System
91 Fuel Tank pressure sensor
92 EVAP Solenoid/Valve/Vacuum Lines

13

[QUOTE=infotechplus;2097282]-----CEL # List-----
1 O2A - Oxygen sensor #1
2 O2B - Oxygen sensor #2
3 MAP - manifold absolute pressure sensor
4 CKP - crank position sensor
5 MAP - manifold absolute pressure sensor
6 ECT - water temperature sensor
7 TPS - throttle position sensor
8 TDC - top dead centre sensor
9 CYP - cylinder sensor
10 IAT - intake air temperature sensor
12 EGR - exhaust gas recirculation lift valve
13 BARO - atmospheric pressure sensor
14 IAC (EACV) - idle air control valve
15 Ignition output signal
16 Fuel injectors
17 VSS - speed sensor
19 Automatic transmission lockup control valve
20 Electrical load detector
21 VTEC spool solenoid valve
22 VTEC pressure valve
23 Knock sensor
30 Automatic transmission A signal
31 Automatic transmission B signal
36 traction control found on JDM ecu’s
41 Primary oxygen sensor heater
43 Fuel supply system
45 Fuel system too rich or lean
48 LAF - lean air fuel sensor
54 CKF - crank fluctuation sensor
58 TDC sensor #2
61 Primary oxygen sensor
63 Secondary oxygen sensor circuit
65 Secondary oxygen sensor heater wire (black wires)
67 Cat Converter
71 random misfire cylinder 1
72 random misfire cylinder 2
73 random misfire cylinder 3
74 random misfire cylinder 4
80 EGR Valve/Line
86 ECT sensor - Cooling System
91 Fuel Tank pressure sensor
92 EVAP Solenoid/Valve/Vacuum Lines[/QUOTE]

Thanks alot, big help… But I have a question… its obd1 cable tranny, there is no electrical plug for the VSS… how do I fix that? speedo and everything works.

14

Everything is fixed, bought a new IAT sensor, VSS dissappeared after I reset the ECU, Its a Chipped p28 so they must have done away with the VSS, and the Vtec Pressure Valve wasn’t plugged into the ecu. I pulled the Ecu and the wire just fell out. Repaired the Wire and no more check engine light :rockon: Took it down the street just to see if the Vtec was working and it kickked in and pulled so hard felt like it was turbo charged… Thanks for all the Help guys!!!